The IRONMAN Switzerland Thun is a premier full-distance triathlon held annually in Thun, Switzerland. The 2026 edition is scheduled for Sunday, July 5, 2026, with the race commencing at 6:00 AM local time. Athletes will begin with a 3.8 km swim in the pristine waters of Lake Thun, followed by a challenging 180.2 km bike ride through the Swiss Alps, and conclude with a 42.195 km run across scenic bridges and through the historic town of Thun. This event offers qualifying slots for the 2026 IRONMAN World Championship in Kailua-Kona, Hawai`i, USA, on October 10, 2026.
Race
Marathon
The run course of IRONMAN Switzerland Thun winds through the historic streets and scenic bridges of Thun, offering athletes a flat-to-rolling 42.2 km route with stunning views of the Alps and Lake Thun.
Weather based on historical averages.
FAQs
What is the Ironman Switzerland Thun?
How long is the Ironman Switzerland Thun?
Where does the Ironman Switzerland Thun take place?
What is the elevation gain of the Ironman Switzerland Thun?
How can I prepare for the Ironman Switzerland Thun?
How do I choose the right training plan for the Ironman Switzerland Thun?
The run course of IRONMAN Switzerland Thun winds through the historic streets and scenic bridges of Thun, offering athletes a flat-to-rolling 42.2 km route with stunning views of the Alps and Lake Thun.
The Ironman Switzerland Thun is 42km long.
The Ironman Switzerland Thun takes place in Thun, Switzerland.
Runna classifies the Ironman Switzerland Thun 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 Ironman Switzerland Thun?
The run course of IRONMAN Switzerland Thun winds through the historic streets and scenic bridges of Thun, offering athletes a flat-to-rolling 42.2 km route with stunning views of the Alps and Lake Thun.
How long is the Ironman Switzerland Thun?
The Ironman Switzerland Thun is 42km long.
Where does the Ironman Switzerland Thun take place?
The Ironman Switzerland Thun takes place in Thun, Switzerland.
What is the elevation gain of the Ironman Switzerland Thun?
Runna classifies the Ironman Switzerland Thun elevation profile as Flat.
How can I prepare for the Ironman Switzerland Thun?
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 Ironman Switzerland Thun?
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!
More
Sport:
Running
This event listing is for informational purposes only. Runna is not affiliated with, endorsed by, or sponsored by Ironman Switzerland Thun 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 Switzerland Thun website.
