Triathlon Locarno is a dynamic two-day endurance event held annually in early September on the scenic shores of Lake Maggiore in Locarno, Switzerland. It features a full spectrum of races, including a Kids Triathlon, Youth Triathlon (500 m swim • 6 km bike • 2.5 km run), and a Mini-Triathlon (500 m swim • 20 km bike • 5 km run) with an option for relay teams. For more seasoned athletes, the event offers an Olympic Distance race (1.5 km swim • 40 km bike • 10 km run), a Medium Distance 70.3 format (1.9 km swim • 90 km bike • 21 km run), and a team relay over the standard Olympic course. Participants can also choose the Short Duathlon format (2.5 km run • 20 km bike • 5 km run), ideal for non-swimmers. With its family-friendly atmosphere, professionally organized races, and breathtaking Alpine lake backdrop, Triathlon Locarno welcomes both first-timers and experienced triathletes for a memorable multisport weekend.
Race Date:
07 September, 2025
The Medium Distance (70.3) at Triathlon Locarno is a demanding endurance triathlon held on Sunday, featuring a 1.9 km swim in Lake Maggiore, a 90 km bike ride, and a flat 21 km run over eight lakeside laps. It’s designed for seasoned triathletes within the Swiss Triathlon circuit, offering a scenic yet technically challenging course under full Swiss Triathlon regulations.
Weather based on historical averages.
The Medium Distance (70.3) at Triathlon Locarno is a demanding endurance triathlon held on Sunday, featuring a 1.9 km swim in Lake Maggiore, a 90 km bike ride, and a flat 21 km run over eight lakeside laps. It’s designed for seasoned triathletes within the Swiss Triathlon circuit, offering a scenic yet technically challenging course under full Swiss Triathlon regulations.
The Triathlon Locarno Medium Distance is 21km long.
The Triathlon Locarno Medium Distance takes place in Locarno, Switzerland.
Runna classifies the Triathlon Locarno Medium Distance 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!
The Medium Distance (70.3) at Triathlon Locarno is a demanding endurance triathlon held on Sunday, featuring a 1.9 km swim in Lake Maggiore, a 90 km bike ride, and a flat 21 km run over eight lakeside laps. It’s designed for seasoned triathletes within the Swiss Triathlon circuit, offering a scenic yet technically challenging course under full Swiss Triathlon regulations.
The Triathlon Locarno Medium Distance is 21km long.
The Triathlon Locarno Medium Distance takes place in Locarno, Switzerland.
Runna classifies the Triathlon Locarno Medium Distance 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!
Triathlon
Nature
Team
Kid friendly
Relay
This event listing is for informational purposes only. Runna is not affiliated with, endorsed by, or sponsored by Triathlon Locarno or Associazione Triathlon Locarno. 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 Triathlon Locarno website.