The Top 5 Triathlons of the 2025 Season

Whether you're chasing a podium finish or cheering from the sidelines, these five races define the triathlon calendar in 2025. They offer a mix of elite-level competition, scenic courses, and unforgettable energy—reminding us why we swim, bike, and run in the first place.

1. IRONMAN 70.3 Oceanside – California

Oceanside kicks off the North American season with sunshine, salt air, and serious speed. Athletes love the unique course that starts with a harbour swim, cruises through Camp Pendleton on the bike, and wraps up with a run along the beach. This year, the race delivered a thrilling finish, with Lionel Sanders outpacing Rudy von Berg and Gustav Iden in a stacked pro field. The energy? Electric. The scenery? Iconic. It’s a perfect blend of competition, community, and coastal charm.

2. T100 Triathlon World Tour – French Riviera

As one of the marquee stops on the new T100 Triathlon World Tour, the French Riviera brings elite racing to one of Europe’s most glamorous coastlines. The 100km format (2km swim, 80km bike, 18km run) is fast, fierce, and spectator-friendly. Against a backdrop of ocean cliffs, yacht-lined harbours, and postcard-perfect towns, athletes battle for critical series points. If you're looking for racing with prestige and a hint of luxury, this is your event.

3. CLASH Endurance Miami – Florida

Held inside Homestead-Miami Speedway, CLASH Miami is where endurance meets adrenaline. The course is compact but brutal—hot, flat, and fast—with plenty of action for spectators thanks to its loop-style format. The NASCAR setting gives this race an edge, and the high-octane vibe is unmistakable. For athletes and fans who like speed, accessibility, and something different, CLASH delivers a thrilling twist on the triathlon experience.

4. IRONMAN 70.3 Indian Wells–La Quinta – California

If your season stretches into December, this desert race is a must. The Indian Wells–La Quinta course weaves through golf resorts, palm-lined streets, and flat, open roads, making it a perfect PR course. The cooler temps are

ideal for racing, and the scenery is pure California. It's a popular race for first-timers and seasoned athletes alike, and a celebratory way to close out the year.

5. IRONMAN Canada – Ottawa

IRONMAN returns to the heart of Canada with a full-distance event that captures both urban excitement and natural beauty. Ottawa’s riverside bike routes, shaded run paths, and vibrant downtown finish line make it an unforgettable race weekend. With enthusiastic local support and a layout that balances challenge and charm, it’s a highlight of the North American full-distance calendar.

From beachfront sprints, to desert finishes and speedway loops, these events represent the best of what triathlon has to offer in 2025. Whether you're racing for a time, testing your limits, or just soaking up the vibes, these races remind us what makes the sport so addicting—community, challenge, and unforgettable courses.