IRONMAN 70.3 Leeds is a premier triathlon event set in the heart of Yorkshire, featuring a 1.9K swim, 90K bike ride, and 21.1K run—covering the full Half IRONMAN distance. The race begins with a swim in a scenic open-water setting, followed by a challenging bike course through the rolling Yorkshire countryside, and finishes with a dynamic run into the energetic city center of Leeds. Designed for both seasoned triathletes and ambitious newcomers, the event combines natural beauty, technical variety, and strong crowd support. With a reputation for its well-organized race logistics and enthusiastic local spectators, IRONMAN 70.3 Leeds offers a memorable endurance challenge in one of the UK’s most iconic sporting regions. Whether racing for a personal best or chasing IRONMAN World Championship qualification, this event delivers a world-class triathlon experience.
Race Date:
27 July, 2025
IRONMAN Leeds will take place on July 27, 2025, in Leeds, England, and is organized by The IRONMAN Group. This full-distance triathlon features a swim in Waterloo Lake, a challenging bike course through the Yorkshire countryside, and a multi-loop marathon run around Roundhay Park, showcasing Leeds’ proud triathlon heritage.
Weather based on historical averages.
IRONMAN Leeds will take place on July 27, 2025, in Leeds, England, and is organized by The IRONMAN Group. This full-distance triathlon features a swim in Waterloo Lake, a challenging bike course through the Yorkshire countryside, and a multi-loop marathon run around Roundhay Park, showcasing Leeds’ proud triathlon heritage.
The IRONMAN Leeds is 42km long.
The IRONMAN Leeds takes place in Leeds, UK.
The IRONMAN Leeds elevation gain is 455 meters, which Runna classifies as a Hilly 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!
IRONMAN Leeds will take place on July 27, 2025, in Leeds, England, and is organized by The IRONMAN Group. This full-distance triathlon features a swim in Waterloo Lake, a challenging bike course through the Yorkshire countryside, and a multi-loop marathon run around Roundhay Park, showcasing Leeds’ proud triathlon heritage.
The IRONMAN Leeds is 42km long.
The IRONMAN Leeds takes place in Leeds, UK.
The IRONMAN Leeds elevation gain is 455 meters, which Runna classifies as a Hilly 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!
Triathlon
Nature
This event listing is for informational purposes only. Runna is not affiliated with, endorsed by, or sponsored by IRONMAN Leeds 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 Leeds website.