On October 25, 2025, the Giddy Horse Races weekend returns to the historic Chepstow Racecourse for a celebration of trail running and endurance challenges. Participants can choose from standard trail distances like 4-mile, 8-mile, and half marathon, as well as night runs, canicross events, and obstacle course races for added adventure. Ultra runners can take on solo or team backyard-style challenges, with options including an 8-hour (33 miles), 12-hour (50 miles), and 24-hour (approx. 104 miles) ultra race. The looped course blends woodland, parkland, and tarmac with gentle elevation and panoramic views of the Severn Bridge and Wye Valley cliffs. With its festival atmosphere, variety of race formats, and inclusive approach, it’s a standout event on the UK trail running calendar.
Races
50 miles
33 miles
Half Marathon
8 miles
4 miles
Scheduled for Saturday, 25 October 2025 at Piercefield Park, Chepstow Racecourse, the 12-Hour Backyard Race pushes participants to cover as many hourly 4.167-mile loops as possible over twelve hours. Organised by Relish Running, it’s a test of endurance in a stunning countryside setting.
Taking place on Saturday, 25 October 2025 at Piercefield Park, Chepstow Racecourse, the 8-Hour Backyard Race challenges runners to complete as many 4.167-mile loops as possible within eight hours. Organised by Relish Running, it offers a scenic mix of woodland, parkland, and tarmac terrain.
Scheduled for Sunday, 25 October 2025 at Piercefield Park, Chepstow Racecourse, the Half Marathon Trail consists of three slightly extended laps with views of the Severn Bridge and surrounding countryside. Organised by Relish Running, it’s a rewarding off-road half marathon experience.
Taking place on Sunday, 25 October 2025 at Piercefield Park, Chepstow Racecourse, the 8-Mile Trail Race covers two scenic laps through woodland and parkland. Organised by Relish Running, it balances speed with technical off-road running.
Held on Sunday, 25 October 2025 at Piercefield Park, Chepstow Racecourse, the 4-Mile Trail Race is a single-lap challenge on mixed terrain with sweeping views of the Wye Valley. Organised by Relish Running, it’s ideal for newcomers and short-distance trail runners.
Weather based on historical averages.
FAQs
What is the Giddy Horse 12-Hour Backyard?
How long is the Giddy Horse 12-Hour Backyard?
Where does the Giddy Horse 12-Hour Backyard take place?
What is the elevation gain of the Giddy Horse 12-Hour Backyard?
How can I prepare for the Giddy Horse 12-Hour Backyard?
How do I choose the right training plan for the Giddy Horse 12-Hour Backyard?
Scheduled for Saturday, 25 October 2025 at Piercefield Park, Chepstow Racecourse, the 12-Hour Backyard Race pushes participants to cover as many hourly 4.167-mile loops as possible over twelve hours. Organised by Relish Running, it’s a test of endurance in a stunning countryside setting.
The Giddy Horse 12-Hour Backyard is 80km long.
The Giddy Horse 12-Hour Backyard takes place in Chepstow, Monmouthshire, UK.
Runna classifies the Giddy Horse 12-Hour Backyard 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!
What is the Giddy Horse 12-Hour Backyard?
Scheduled for Saturday, 25 October 2025 at Piercefield Park, Chepstow Racecourse, the 12-Hour Backyard Race pushes participants to cover as many hourly 4.167-mile loops as possible over twelve hours. Organised by Relish Running, it’s a test of endurance in a stunning countryside setting.
How long is the Giddy Horse 12-Hour Backyard?
The Giddy Horse 12-Hour Backyard is 80km long.
Where does the Giddy Horse 12-Hour Backyard take place?
The Giddy Horse 12-Hour Backyard takes place in Chepstow, Monmouthshire, UK.
What is the elevation gain of the Giddy Horse 12-Hour Backyard?
Runna classifies the Giddy Horse 12-Hour Backyard elevation profile as Flat.
How can I prepare for the Giddy Horse 12-Hour Backyard?
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!
How do I choose the right training plan for the Giddy Horse 12-Hour Backyard?
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!
What is the Giddy Horse 8-Hour Backyard?
How long is the Giddy Horse 8-Hour Backyard?
Where does the Giddy Horse 8-Hour Backyard take place?
What is the elevation gain of the Giddy Horse 8-Hour Backyard?
How can I prepare for the Giddy Horse 8-Hour Backyard?
How do I choose the right training plan for the Giddy Horse 8-Hour Backyard?
Taking place on Saturday, 25 October 2025 at Piercefield Park, Chepstow Racecourse, the 8-Hour Backyard Race challenges runners to complete as many 4.167-mile loops as possible within eight hours. Organised by Relish Running, it offers a scenic mix of woodland, parkland, and tarmac terrain.
The Giddy Horse 8-Hour Backyard is 53km long.
The Giddy Horse 8-Hour Backyard takes place in Chepstow, Monmouthshire, UK.
Runna classifies the Giddy Horse 8-Hour Backyard 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!
What is the Giddy Horse 8-Hour Backyard?
Taking place on Saturday, 25 October 2025 at Piercefield Park, Chepstow Racecourse, the 8-Hour Backyard Race challenges runners to complete as many 4.167-mile loops as possible within eight hours. Organised by Relish Running, it offers a scenic mix of woodland, parkland, and tarmac terrain.
How long is the Giddy Horse 8-Hour Backyard?
The Giddy Horse 8-Hour Backyard is 53km long.
Where does the Giddy Horse 8-Hour Backyard take place?
The Giddy Horse 8-Hour Backyard takes place in Chepstow, Monmouthshire, UK.
What is the elevation gain of the Giddy Horse 8-Hour Backyard?
Runna classifies the Giddy Horse 8-Hour Backyard elevation profile as Flat.
How can I prepare for the Giddy Horse 8-Hour Backyard?
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!
How do I choose the right training plan for the Giddy Horse 8-Hour Backyard?
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!
What is the Giddy Horse Trail Half Marathon?
How long is the Giddy Horse Trail Half Marathon?
Where does the Giddy Horse Trail Half Marathon take place?
What is the elevation gain of the Giddy Horse Trail Half Marathon?
How can I prepare for the Giddy Horse Trail Half Marathon?
How do I choose the right training plan for the Giddy Horse Trail Half Marathon?
Scheduled for Sunday, 25 October 2025 at Piercefield Park, Chepstow Racecourse, the Half Marathon Trail consists of three slightly extended laps with views of the Severn Bridge and surrounding countryside. Organised by Relish Running, it’s a rewarding off-road half marathon experience.
The Giddy Horse Trail Half Marathon is 21km long.
The Giddy Horse Trail Half Marathon takes place in Chepstow, Monmouthshire, UK.
Runna classifies the Giddy Horse Trail 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!
What is the Giddy Horse Trail Half Marathon?
Scheduled for Sunday, 25 October 2025 at Piercefield Park, Chepstow Racecourse, the Half Marathon Trail consists of three slightly extended laps with views of the Severn Bridge and surrounding countryside. Organised by Relish Running, it’s a rewarding off-road half marathon experience.
How long is the Giddy Horse Trail Half Marathon?
The Giddy Horse Trail Half Marathon is 21km long.
Where does the Giddy Horse Trail Half Marathon take place?
The Giddy Horse Trail Half Marathon takes place in Chepstow, Monmouthshire, UK.
What is the elevation gain of the Giddy Horse Trail Half Marathon?
Runna classifies the Giddy Horse Trail Half Marathon elevation profile as Flat.
How can I prepare for the Giddy Horse Trail Half Marathon?
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!
How do I choose the right training plan for the Giddy Horse Trail Half Marathon?
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!
What is the Giddy Horse Trail 8 Mile?
How long is the Giddy Horse Trail 8 Mile?
Where does the Giddy Horse Trail 8 Mile take place?
What is the elevation gain of the Giddy Horse Trail 8 Mile?
How can I prepare for the Giddy Horse Trail 8 Mile?
How do I choose the right training plan for the Giddy Horse Trail 8 Mile?
Taking place on Sunday, 25 October 2025 at Piercefield Park, Chepstow Racecourse, the 8-Mile Trail Race covers two scenic laps through woodland and parkland. Organised by Relish Running, it balances speed with technical off-road running.
The Giddy Horse Trail 8 Mile is 12km long.
The Giddy Horse Trail 8 Mile takes place in Chepstow, Monmouthshire, UK.
Runna classifies the Giddy Horse Trail 8 Mile 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!
What is the Giddy Horse Trail 8 Mile?
Taking place on Sunday, 25 October 2025 at Piercefield Park, Chepstow Racecourse, the 8-Mile Trail Race covers two scenic laps through woodland and parkland. Organised by Relish Running, it balances speed with technical off-road running.
How long is the Giddy Horse Trail 8 Mile?
The Giddy Horse Trail 8 Mile is 12km long.
Where does the Giddy Horse Trail 8 Mile take place?
The Giddy Horse Trail 8 Mile takes place in Chepstow, Monmouthshire, UK.
What is the elevation gain of the Giddy Horse Trail 8 Mile?
Runna classifies the Giddy Horse Trail 8 Mile elevation profile as Flat.
How can I prepare for the Giddy Horse Trail 8 Mile?
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!
How do I choose the right training plan for the Giddy Horse Trail 8 Mile?
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!
What is the Giddy Horse Trail 4 Mile?
How long is the Giddy Horse Trail 4 Mile?
Where does the Giddy Horse Trail 4 Mile take place?
What is the elevation gain of the Giddy Horse Trail 4 Mile?
How can I prepare for the Giddy Horse Trail 4 Mile?
How do I choose the right training plan for the Giddy Horse Trail 4 Mile?
Held on Sunday, 25 October 2025 at Piercefield Park, Chepstow Racecourse, the 4-Mile Trail Race is a single-lap challenge on mixed terrain with sweeping views of the Wye Valley. Organised by Relish Running, it’s ideal for newcomers and short-distance trail runners.
The Giddy Horse Trail 4 Mile is 6km long.
The Giddy Horse Trail 4 Mile takes place in Chepstow, Monmouthshire, UK.
Runna classifies the Giddy Horse Trail 4 Mile 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!
What is the Giddy Horse Trail 4 Mile?
Held on Sunday, 25 October 2025 at Piercefield Park, Chepstow Racecourse, the 4-Mile Trail Race is a single-lap challenge on mixed terrain with sweeping views of the Wye Valley. Organised by Relish Running, it’s ideal for newcomers and short-distance trail runners.
How long is the Giddy Horse Trail 4 Mile?
The Giddy Horse Trail 4 Mile is 6km long.
Where does the Giddy Horse Trail 4 Mile take place?
The Giddy Horse Trail 4 Mile takes place in Chepstow, Monmouthshire, UK.
What is the elevation gain of the Giddy Horse Trail 4 Mile?
Runna classifies the Giddy Horse Trail 4 Mile elevation profile as Flat.
How can I prepare for the Giddy Horse Trail 4 Mile?
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!
How do I choose the right training plan for the Giddy Horse Trail 4 Mile?
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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Sport:
Running
Tags:
Team
Night Run
This event listing is for informational purposes only. Runna is not affiliated with, endorsed by, or sponsored by Giddy Horse Races 2025 or Relish Running. 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 Giddy Horse Races 2025 website.
