Your Big Calendar of Triathlon Races in 2025
How and what to watch.
Just like last year, I’ve pulled together some of the key races for the season all in one place. Some of this is best guesses right now on what will be the “big” races and much of it will be updated as more details are announced.
And, yes, it is very challenging to keep track of, which can make it hard to be a fan. But, at least this way it’s all in one place for you to plan your viewing.
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Ironman: You can see the full Ironman pro schedule here—but the focus will be on the Ironman Pro Series races with its $1.7M additional series prize money. (And it’s primarily IM Pro Series races we included below, plus a couple of the bigger money non-Pro Series races.)
WATCH: The Ironman Pro Series will air on Outside Watch in the U.S. and Canada, and on proseries.ironman.com and DAZN everywhere else.
PTO: Has announced the seven of the T100 race series (though some of the dates have since changed — reflected below per what the PTO told me) and more races are expected to be added
WATCH: Typically on PTO+ and their Youtube (as well as Outside Watch & HBO’s Max) — and on Eurosport in Europe.
World Triathlon: Has a full schedule of World Cups, Para Cups, Multisport Champs, and World Tri associated events here.
WATCH: TriathlonLive.tv (which requires a subscription)
SuperTri: Includes the E Tri World Champs (which will likely be in April and are included in the World Tri schedule here) + the Supertri Championship Season in the fall TBA (though you can infer when the Chicago Triathlon, Toulouse, and Long Beach are)
WATCH: Typically on Super League TV (their Youtube and Live)
Challenge, CLASH, others: Challenge races vary depending on each individual race organizer and there is an annual Challenge Family bonus for pros. It does not appear that CLASH will have pro fields at its events this year. And then there are still a handful of one-off independent races that get good fields.
WATCH: When Challenge races are streamed, they’re typically aired here
XTERRA: Has an extensive elite schedule, with regional champs and qualifying races, culminating in the World Champs in Italy.
WATCH: Many of the World Cup races will stream free on XTERRA LIVE (their Youtube).
**to be updated**
The Big Pro Races of 2025
Feb. 15: WTCS Abu Dhabi (Abu Dhabi, UAE)
March 1: IM New Zealand (Taupō, New Zealand)
March 23: Geelong 70.3 (Geelong, Australia)
March 27-30: XTERRA Asia-Pac Championship (Dunsborough, Australia)
March 30: IM Africa Championship (Port Elizabeth, South Africa)
April 5: Oceanside 70.3 (Oceanside, California)
April 5: Supertri E Tri World Championship (TBA)
April 5-6: T100 Singapore (Singapore)
April 26: IM N. America Championship (Houston, Texas)
May 4: Venice-Jesolo 70.3 (Venice, Italy)
May 10: N. America 70.3 Championship (St. George, Utah)
May 16-18: XTERRA N. America Championship (Pelham, Alabama)
May 17: WTCS Yokohama (Yokohama, Japan)
May 18: Challenge Championship (Samorin, Slovakia)
May 18: Aix-en-Provence 70.3 (Marseille, France)
May 31: T100 San Francisco (San Francisco, California)
May 31: WTCS Italy (TBA)
June 1: IM Europe Championship - women (Hamburg, Germany)
June 8: Eagleman 70.3 (Cambridge, Maryland)
June 15: IM Cairns (Cairns, Australia)
June 27-29: T100 French Riviera (Fréjus, France)
June 28: IM Europe Championship - men (Frankfurt, Germany)
July 6: Europe 70.3 Championship (Jonkoping, Sweden)
July 6: Challenge Roth (Germany)
July 12-13: WTCS Hamburg & Mixed Relay World Championship (Hamburg, Germany)
July 13: Swansea 70.3 (Swansea, UK)
July 20: IM Lake Placid (Lake Placid, New York)
Aug. 9-10: T100 London (London, UK)
Aug. 15-17: XTERRA Europe Championship (Zittau, Germany)
Aug. 31: Zell am See 70.3 (Zell am See, Austria)
Sept. 14: Men’s Ironman World Championship (Nice, France)
Sept. 14: WTCS Karlovy Vary (Czech Republic)
Sept. 25-28: XTERRA World Championship (Trentino, Italy)
Sept. 26: WTCS Weihai (China)
Sept. 27-28: T100 Ibiza (Ibiza, Spain)
Oct. 11: Women’s Ironman World Championship (Kona, Hawaii)
Oct. 15-19: WTCS Championship Finals (Wollongong, Australia)
Oct. 25-26: T100 Lake Las Vegas (Henderson, Nevada)
Oct. 26: Latin America 70.3 Championship (Florianópolis, Brazil)
Nov. 8-9: 70.3 World Championship (Marbella, Spain)
Nov. 15-16: T100 Grand Final (Dubai, UAE)
Nov. 23: Ironman Latin America Championship (Cozumel, Mexico)
Dec. 7: Ironman Asia-Pacific Championship (Western Australia)