Returning on July 18–19, 2026, the Belvoir Castle Multisport Event unfolds across the stunning 3,000-acre grounds of Belvoir Castle, with sweeping views over the Vale of Belvoir. Participants can choose from over 20 disciplines—such as sprint, Olympic, and “Gauntlet” triathlons, duathlons, aquabikes, aquathlons, runs, and swims—tailored for everyone from juniors to seasoned athletes. The event is British Triathlon–permitted and even hosts the Standard Distance Duathlon World Championship Qualifier on Sunday, July 19. A vibrant festival atmosphere with camping, a lively event village, and live entertainment makes it much more than just a race—it’s a full-weekend celebration.
Race Date:
19 July, 2026
On 19 July 2026, the Marathon takes athletes on multiple scenic loops through the estate and surrounding countryside, organized by Castle Race Series in Belvoir Castle Estate.
Race Date:
19 July, 2026
Held 19 July 2026 in Belvoir Castle Estate, the Half Marathon explores rural lanes and estate tracks, organized by Castle Race Series.
Race Date:
19 July, 2026
Also known as the Gauntlet, this half-iron-style course includes a 1.9 km swim, 90 km bike, and 21 km run—reserved for experienced endurance athletes. Organized by Castle Race Series, it takes place on 19 July 2026 within the castle grounds.
Race Date:
19 July, 2026
On 19 July 2026, the Middle Distance Duathlon provides a true endurance test in the Leicestershire countryside, hosted by Castle Race Series at Belvoir Castle Estate.
Race Date:
19 July, 2026
The opening 10.5K run takes place on 19 July 2026 at Belvoir Castle Estate, Grantham, Leicestershire, UK, organized by Castle Race Series. Athletes navigate undulating paths through the castle grounds, with sweeping countryside views to start the race.
Race Date:
18 July, 2026
The 10K run, scheduled for 18 July 2026, weaves through castle grounds and countryside, organized by Castle Race Series in Belvoir Castle Estate.
Race Date:
19 July, 2026
The Olympic Triathlon tests endurance with a 1,500 m swim, 45 km bike, and 10 km run through varied castle terrain. Hosted by Castle Race Series, the event is held on 19 July 2026, at Belvoir Castle Estate.
Race Date:
19 July, 2026
On 19 July 2026, the Standard Aquathlon offers a longer swim-run challenge around the castle’s lake and grounds, organized by Castle Race Series.
Race Date:
18 July, 2026
The Sprint Plus distance escalates the challenge with an 800 m swim, 40 km bike, and 8 km run—offering an ideal middle ground between Sprint and Olympic formats. Organized by Castle Race Series, it runs on 18 July 2026, at the estate.
Race Date:
19 July, 2026
The concluding 6.5K run, on 19 July 2026 at Belvoir Castle Estate, Grantham, Leicestershire, UK, organized by Castle Race Series, loops around scenic estate trails and finishes in front of the castle, creating a memorable end to the duathlon challenge.
Race Date:
18 July, 2026
The popular Sprint Triathlon features a 750 m swim, 20 km bike, and 5 km run—suited to first-timers through seasoned multisport athletes. Presented by Castle Race Series, it unfolds on 18 July 2026 at Belvoir Castle.
Race Date:
18 July, 2026
Taking place 18 July 2026 at Belvoir Castle Estate, the Sprint Aquathlon blends open-water swimming and a scenic 5K run, organized by Castle Race Series.
Weather based on historical averages.
On 19 July 2026, the Marathon takes athletes on multiple scenic loops through the estate and surrounding countryside, organized by Castle Race Series in Belvoir Castle Estate.
The Belvoir Castle Multisport Marathon is 42km long.
The Belvoir Castle Multisport Marathon takes place in Belvoir Castle, Grantham, UK.
Runna classifies the Belvoir Castle Multisport Marathon elevation profile as Flat.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
On 19 July 2026, the Marathon takes athletes on multiple scenic loops through the estate and surrounding countryside, organized by Castle Race Series in Belvoir Castle Estate.
The Belvoir Castle Multisport Marathon is 42km long.
The Belvoir Castle Multisport Marathon takes place in Belvoir Castle, Grantham, UK.
Runna classifies the Belvoir Castle Multisport Marathon elevation profile as Flat.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
Held 19 July 2026 in Belvoir Castle Estate, the Half Marathon explores rural lanes and estate tracks, organized by Castle Race Series.
The Belvoir Castle Multisport Half Marathon is 21km long.
The Belvoir Castle Multisport Half Marathon takes place in Belvoir Castle, Grantham, UK.
Runna classifies the Belvoir Castle Multisport Half Marathon elevation profile as Flat.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
Held 19 July 2026 in Belvoir Castle Estate, the Half Marathon explores rural lanes and estate tracks, organized by Castle Race Series.
The Belvoir Castle Multisport Half Marathon is 21km long.
The Belvoir Castle Multisport Half Marathon takes place in Belvoir Castle, Grantham, UK.
Runna classifies the Belvoir Castle Multisport Half Marathon elevation profile as Flat.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
Also known as the Gauntlet, this half-iron-style course includes a 1.9 km swim, 90 km bike, and 21 km run—reserved for experienced endurance athletes. Organized by Castle Race Series, it takes place on 19 July 2026 within the castle grounds.
The Belvoir Castle Multisport Gauntlet Half Iron Triathlon is 21km long.
The Belvoir Castle Multisport Gauntlet Half Iron Triathlon takes place in Belvoir Castle, Grantham, UK.
Runna classifies the Belvoir Castle Multisport Gauntlet Half Iron Triathlon elevation profile as Flat.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
Also known as the Gauntlet, this half-iron-style course includes a 1.9 km swim, 90 km bike, and 21 km run—reserved for experienced endurance athletes. Organized by Castle Race Series, it takes place on 19 July 2026 within the castle grounds.
The Belvoir Castle Multisport Gauntlet Half Iron Triathlon is 21km long.
The Belvoir Castle Multisport Gauntlet Half Iron Triathlon takes place in Belvoir Castle, Grantham, UK.
Runna classifies the Belvoir Castle Multisport Gauntlet Half Iron Triathlon elevation profile as Flat.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
On 19 July 2026, the Middle Distance Duathlon provides a true endurance test in the Leicestershire countryside, hosted by Castle Race Series at Belvoir Castle Estate.
The Belvoir Castle Multisport Middle Duathlon 10.5K is 10km long.
The Belvoir Castle Multisport Middle Duathlon 10.5K takes place in Belvoir Castle, Grantham, UK.
Runna classifies the Belvoir Castle Multisport Middle Duathlon 10.5K elevation profile as Flat.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
On 19 July 2026, the Middle Distance Duathlon provides a true endurance test in the Leicestershire countryside, hosted by Castle Race Series at Belvoir Castle Estate.
The Belvoir Castle Multisport Middle Duathlon 10.5K is 10km long.
The Belvoir Castle Multisport Middle Duathlon 10.5K takes place in Belvoir Castle, Grantham, UK.
Runna classifies the Belvoir Castle Multisport Middle Duathlon 10.5K elevation profile as Flat.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
The opening 10.5K run takes place on 19 July 2026 at Belvoir Castle Estate, Grantham, Leicestershire, UK, organized by Castle Race Series. Athletes navigate undulating paths through the castle grounds, with sweeping countryside views to start the race.
The Belvoir Castle Multisport Standard Duathlon 10.5K is 10km long.
The Belvoir Castle Multisport Standard Duathlon 10.5K takes place in Belvoir Castle, Grantham, UK.
Runna classifies the Belvoir Castle Multisport Standard Duathlon 10.5K elevation profile as Flat.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
The opening 10.5K run takes place on 19 July 2026 at Belvoir Castle Estate, Grantham, Leicestershire, UK, organized by Castle Race Series. Athletes navigate undulating paths through the castle grounds, with sweeping countryside views to start the race.
The Belvoir Castle Multisport Standard Duathlon 10.5K is 10km long.
The Belvoir Castle Multisport Standard Duathlon 10.5K takes place in Belvoir Castle, Grantham, UK.
Runna classifies the Belvoir Castle Multisport Standard Duathlon 10.5K elevation profile as Flat.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
The 10K run, scheduled for 18 July 2026, weaves through castle grounds and countryside, organized by Castle Race Series in Belvoir Castle Estate.
The Belvoir Castle Multisport 10K is 10km long.
The Belvoir Castle Multisport 10K takes place in Belvoir Castle, Grantham, UK.
Runna classifies the Belvoir Castle Multisport 10K elevation profile as Flat.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
The 10K run, scheduled for 18 July 2026, weaves through castle grounds and countryside, organized by Castle Race Series in Belvoir Castle Estate.
The Belvoir Castle Multisport 10K is 10km long.
The Belvoir Castle Multisport 10K takes place in Belvoir Castle, Grantham, UK.
Runna classifies the Belvoir Castle Multisport 10K elevation profile as Flat.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
The Olympic Triathlon tests endurance with a 1,500 m swim, 45 km bike, and 10 km run through varied castle terrain. Hosted by Castle Race Series, the event is held on 19 July 2026, at Belvoir Castle Estate.
The Belvoir Castle Multisport Olympic Triathlon is 10km long.
The Belvoir Castle Multisport Olympic Triathlon takes place in Belvoir Castle, Grantham, UK.
Runna classifies the Belvoir Castle Multisport Olympic Triathlon elevation profile as Flat.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
The Olympic Triathlon tests endurance with a 1,500 m swim, 45 km bike, and 10 km run through varied castle terrain. Hosted by Castle Race Series, the event is held on 19 July 2026, at Belvoir Castle Estate.
The Belvoir Castle Multisport Olympic Triathlon is 10km long.
The Belvoir Castle Multisport Olympic Triathlon takes place in Belvoir Castle, Grantham, UK.
Runna classifies the Belvoir Castle Multisport Olympic Triathlon elevation profile as Flat.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
On 19 July 2026, the Standard Aquathlon offers a longer swim-run challenge around the castle’s lake and grounds, organized by Castle Race Series.
The Belvoir Castle Multisport Standard Aquathlon is 10km long.
The Belvoir Castle Multisport Standard Aquathlon takes place in Belvoir Castle, Grantham, UK.
Runna classifies the Belvoir Castle Multisport Standard Aquathlon elevation profile as Flat.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
On 19 July 2026, the Standard Aquathlon offers a longer swim-run challenge around the castle’s lake and grounds, organized by Castle Race Series.
The Belvoir Castle Multisport Standard Aquathlon is 10km long.
The Belvoir Castle Multisport Standard Aquathlon takes place in Belvoir Castle, Grantham, UK.
Runna classifies the Belvoir Castle Multisport Standard Aquathlon elevation profile as Flat.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
The Sprint Plus distance escalates the challenge with an 800 m swim, 40 km bike, and 8 km run—offering an ideal middle ground between Sprint and Olympic formats. Organized by Castle Race Series, it runs on 18 July 2026, at the estate.
The Belvoir Castle Multisport Sprint Plus Triathlon is 8km long.
The Belvoir Castle Multisport Sprint Plus Triathlon takes place in Belvoir Castle, Grantham, UK.
Runna classifies the Belvoir Castle Multisport Sprint Plus Triathlon elevation profile as Flat.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
The Sprint Plus distance escalates the challenge with an 800 m swim, 40 km bike, and 8 km run—offering an ideal middle ground between Sprint and Olympic formats. Organized by Castle Race Series, it runs on 18 July 2026, at the estate.
The Belvoir Castle Multisport Sprint Plus Triathlon is 8km long.
The Belvoir Castle Multisport Sprint Plus Triathlon takes place in Belvoir Castle, Grantham, UK.
Runna classifies the Belvoir Castle Multisport Sprint Plus Triathlon elevation profile as Flat.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
The concluding 6.5K run, on 19 July 2026 at Belvoir Castle Estate, Grantham, Leicestershire, UK, organized by Castle Race Series, loops around scenic estate trails and finishes in front of the castle, creating a memorable end to the duathlon challenge.
The Belvoir Castle Multisport Standard Duathlon 6.5K is 6km long.
The Belvoir Castle Multisport Standard Duathlon 6.5K takes place in Belvoir Castle, Grantham, UK.
Runna classifies the Belvoir Castle Multisport Standard Duathlon 6.5K elevation profile as Flat.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
The concluding 6.5K run, on 19 July 2026 at Belvoir Castle Estate, Grantham, Leicestershire, UK, organized by Castle Race Series, loops around scenic estate trails and finishes in front of the castle, creating a memorable end to the duathlon challenge.
The Belvoir Castle Multisport Standard Duathlon 6.5K is 6km long.
The Belvoir Castle Multisport Standard Duathlon 6.5K takes place in Belvoir Castle, Grantham, UK.
Runna classifies the Belvoir Castle Multisport Standard Duathlon 6.5K elevation profile as Flat.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
The popular Sprint Triathlon features a 750 m swim, 20 km bike, and 5 km run—suited to first-timers through seasoned multisport athletes. Presented by Castle Race Series, it unfolds on 18 July 2026 at Belvoir Castle.
The Belvoir Castle Multisport Sprint Triathlon is 5km long.
The Belvoir Castle Multisport Sprint Triathlon takes place in Belvoir Castle, Grantham, UK.
Runna classifies the Belvoir Castle Multisport Sprint Triathlon elevation profile as Flat.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
The popular Sprint Triathlon features a 750 m swim, 20 km bike, and 5 km run—suited to first-timers through seasoned multisport athletes. Presented by Castle Race Series, it unfolds on 18 July 2026 at Belvoir Castle.
The Belvoir Castle Multisport Sprint Triathlon is 5km long.
The Belvoir Castle Multisport Sprint Triathlon takes place in Belvoir Castle, Grantham, UK.
Runna classifies the Belvoir Castle Multisport Sprint Triathlon elevation profile as Flat.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
Taking place 18 July 2026 at Belvoir Castle Estate, the Sprint Aquathlon blends open-water swimming and a scenic 5K run, organized by Castle Race Series.
The Belvoir Castle Multisport Sprint Aquathlon is 5km long.
The Belvoir Castle Multisport Sprint Aquathlon takes place in Belvoir Castle, Grantham, UK.
Runna classifies the Belvoir Castle Multisport Sprint Aquathlon elevation profile as Flat.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
Taking place 18 July 2026 at Belvoir Castle Estate, the Sprint Aquathlon blends open-water swimming and a scenic 5K run, organized by Castle Race Series.
The Belvoir Castle Multisport Sprint Aquathlon is 5km long.
The Belvoir Castle Multisport Sprint Aquathlon takes place in Belvoir Castle, Grantham, UK.
Runna classifies the Belvoir Castle Multisport Sprint Aquathlon elevation profile as Flat.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
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This event listing is for informational purposes only. Runna is not affiliated with, endorsed by, or sponsored by Belvoir Castle Multisport Event 2026 or Castle Race Series. All event details are based on publicly available information and are provided solely to help users discover running events. Runna does not use any official logos, images, or proprietary content from this event or its organiser. Any trademarks or names mentioned are used descriptively to identify the event in a factual manner. For the most accurate and up to date information (including to register or purchase an entry to the event), please visit the Belvoir Castle Multisport Event 2026 website.