Held on May 18, 2025, the IRONMAN 70.3 Chattanooga attracts athletes worldwide to compete in one of the most scenic and challenging triathlon courses. The event begins with a swim in the Tennessee River, followed by a hilly bike course through the rolling hills of Chattanooga, and ends with a run through the city. Known as the "Scenic City," Chattanooga provides athletes with breathtaking views and exceptional community support. Participants race for qualifying spots in the IRONMAN World Championship and experience the camaraderie of the IRONMAN family.
Race Date:
18 May, 2025
The IRONMAN 70.3 Chattanooga, happening on May 18, 2025, takes athletes on a spectacular journey through the Scenic City. With a downriver swim, a bike ride through historic Chickamauga, and a run along Chattanooga’s vibrant Riverwalk, this race is a favorite among triathlon enthusiasts.
Weather based on historical averages.
The IRONMAN 70.3 Chattanooga, happening on May 18, 2025, takes athletes on a spectacular journey through the Scenic City. With a downriver swim, a bike ride through historic Chickamauga, and a run along Chattanooga’s vibrant Riverwalk, this race is a favorite among triathlon enthusiasts.
The IRONMAN 70.3 Chattanooga is 21km long.
The IRONMAN 70.3 Chattanooga takes place in Chattanooga, Tennessee, USA.
Runna classifies the IRONMAN 70.3 Chattanooga elevation profile as Rolling.
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!
The IRONMAN 70.3 Chattanooga, happening on May 18, 2025, takes athletes on a spectacular journey through the Scenic City. With a downriver swim, a bike ride through historic Chickamauga, and a run along Chattanooga’s vibrant Riverwalk, this race is a favorite among triathlon enthusiasts.
The IRONMAN 70.3 Chattanooga is 21km long.
The IRONMAN 70.3 Chattanooga takes place in Chattanooga, Tennessee, USA.
Runna classifies the IRONMAN 70.3 Chattanooga elevation profile as Rolling.
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
Team
Ironman
Relay
This event listing is for informational purposes only. Runna is not affiliated with, endorsed by, or sponsored by IRONMAN 70.3 Chattanooga 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 Chattanooga website.