IRONMAN 70.3 Weymouth is a highly anticipated middle-distance triathlon set against the stunning backdrop of England's South Coast. The race consists of a 1.2-mile (1.9 km) open water swim in the calm, clear waters of Weymouth Bay, a picturesque 56-mile (90 km) bike course winding through the rolling Dorset countryside, and a flat, spectator-friendly 13.1-mile (21.1 km) run along Weymouth's iconic seafront. The "70.3" in the event's name refers to the total distance in miles of these three disciplines combined. Since its inception in 2016, IRONMAN 70.3 Weymouth has become a popular choice for athletes, offering a challenging yet rewarding course that often features a beautiful sunrise swim and a vibrant finish line atmosphere in the heart of the town, near the Weymouth Pavilion.
Race
Half Marathon
Race Date:
14 September, 2025
IRONMAN 70.3 Weymouth is a premier triathlon event along the Jurassic Coast, featuring a 1.2-mile swim, a 56-mile bike course, and a flat 13.1-mile run.
Weather based on historical averages.
FAQs
What is the IRONMAN 70.3 Weymouth?
How long is the IRONMAN 70.3 Weymouth?
Where does the IRONMAN 70.3 Weymouth take place?
What is the elevation gain of the IRONMAN 70.3 Weymouth?
How can I prepare for the IRONMAN 70.3 Weymouth?
How do I choose the right training plan for the IRONMAN 70.3 Weymouth?
IRONMAN 70.3 Weymouth is a premier triathlon event along the Jurassic Coast, featuring a 1.2-mile swim, a 56-mile bike course, and a flat 13.1-mile run.
The IRONMAN 70.3 Weymouth is 21km long.
The IRONMAN 70.3 Weymouth takes place in Weymouth, Dorset, United Kingdom.
The IRONMAN 70.3 Weymouth elevation gain is 24 meters, which Runna classifies as a Flat race.
The best way to train for the next race is to use a personalized 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 personalized 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 IRONMAN 70.3 Weymouth?
IRONMAN 70.3 Weymouth is a premier triathlon event along the Jurassic Coast, featuring a 1.2-mile swim, a 56-mile bike course, and a flat 13.1-mile run.
How long is the IRONMAN 70.3 Weymouth?
The IRONMAN 70.3 Weymouth is 21km long.
Where does the IRONMAN 70.3 Weymouth take place?
The IRONMAN 70.3 Weymouth takes place in Weymouth, Dorset, United Kingdom.
What is the elevation gain of the IRONMAN 70.3 Weymouth?
The IRONMAN 70.3 Weymouth elevation gain is 24 meters, which Runna classifies as a Flat race.
How can I prepare for the IRONMAN 70.3 Weymouth?
The best way to train for the next race is to use a personalized 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 IRONMAN 70.3 Weymouth?
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalized 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!
More
Sport:
Triathlon
Tags:
Ironman
Relay
This event listing is for informational purposes only. Runna is not affiliated with, endorsed by, or sponsored by IRONMAN 70.3 Weymouth or IRONMAN Group. 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 IRONMAN 70.3 Weymouth website.
