IRONMAN 70.3 St George: Date, start times and how to watch live as stellar pro fields line up

The sixth race of the IRONMAN Pro Series takes place this weekend and the stars will be out in Utah as the great and good of the sport head to IRONMAN 70.3 St George for the final time on the iconic old course.

On the men’s side, 2025 IRONMAN South Africa winner Magnus Ditlev is set to clash with IRONMAN 70.3 Oceanside victor Lionel Sanders, with the Canadian’s close friend and rival Sam Long adding a third superstar into the mix.

Both Sanders and Long are multi-time winners of the race – Lionel winning in 2016, 2018 and 2021 and Sam the two-time defending champion after scintillating displays in 2023 and 2024.

On the women’s side, Paula Findlay adds further interest from a Canadian perspective as the defending champion, while 2022 IRONMAN World Champion Chelsea Sodaro makes her eagerly-awaited seasonal debut.

Start time and how to watch live

The action kicks off at IRONMAN 70.3 St George on Saturday 10 May with the men’s Pro Race starting at 6.32 am in Sand Hollow State Park. That’s 13.32 GMT and 14.32 CET. The women begin two minutes later.

The race will be broadcast live and for free across multiple platforms for viewers around the world including proseries.ironman.com, Outside TV for US and Canada viewers, DAZN, iQIYI, L’Equipe Live, and YouTube among others. 

We’ll embed the YouTube livestream below nearer the time so you don’t have to leave this page.

And as always, the ever reliable IRONMAN Tracker is the perfect data addition to support your viewing.

Pro Men’s Race

On the men’s side a trio of stars look like battling it out for top spot with Long, Ditlev and Sanders all set to compete.

‘The Big Unit’ is the two-time defending champion and is formidable over the 70.3 distance – having finished on the podium in four successive races – and he has won seven events since December 2022.

His storied friendship/rivalry with Sanders will certainly go under the microscope here. The Canadian is equally as adept over the 70.3 distance and has found a new lease of life in the off-season – taking a more relaxed approach to training and amending his nutrition.

Sanders produced a sensational run to break the field at 70.3 Oceanside in early April and has won three consecutive starts over the 70.3 distance. The pair last faced off at Oceanside in 2024, with Sanders besting Long by just over a minute. However, prior to that, Sam had defeated Lionel in eight consecutive races.

The wildcard in the mix is Denmark’s Ditlev, who is competing in his first 70.3 race since the 2022 World Championship where he finished third.

Other names to look out for include pro cycling star Cam Wurf, IRONMAN 70.3 Geelong runner-up Jake Birtwhistle of Australia, IRONMAN 70.3 Sunshine Coast champion Ben Hamilton of New Zealand – who also finished second behind Long in St. George last year – and IRONMAN 70.3 Chattanooga winner Matt Hanson of the United States.

Pro Women’s Race

There is also a defending champion on the women’s side as Canadian superstar Findlay looks to build on her IRONMAN 70.3 Oceanside victory. The 35-year-old has six wins over the 70.3 distance in the past three years and is a contracted athlete on the T100 Triathlon World Tour in 2025 – likely to appear at San Francisco T100 at the end of the month.

Lotte Wilms of the Netherlands, a three-time winner over the 70.3 distance, will also be in the mix, though Findlay has beaten her on all five occasions they have met on the start line.

Sodaro makes her 2025 bow after withdrawing from IRONMAN Texas due to a virus, while IRONMAN 70.3 Oceanside runner-up Jackie Hering and third-place finisher Danielle Lewis re-oppose Findlay in Utah.

Lisa Becharas is perhaps a name to watch out for – she set a blistering bike split at Oceanside – while Brazil’s Vittoria Lopes is another interesting contender.

St George 70.3 course

Athletes will navigate a path through two iconic state parks, basalt lava fields, and a fragile desert reserve as they rise to conquer one of the most prestigious and striking events in the world – an the adventure doesn’t stop when you cross the finish line.  

Greater Zion’s breathtaking scenery and views of the surrounding red rock canyons have made the region an ideal destination for athletes for years. With a million-year geologic history and a desert location at the edge of the Pine Valley Mountains and Zion National Park, St. George is the poster child of the American Southwest.

The swim start is located in the reservoir of Sand Hollow State Park in Hurricane, Utah. The ROKA swim course will feature a fast and direct course with just two turns.

The ZOOT bike course takes you from the City of Hurricane through rolling hills and on the signature climb into Snow Canyon State Park with a fast descent back into downtown St. George. Athletes will ride on freshly paved roads, surrounded by amazing views of the beautiful mountains that surround St. George and Washington County

The HOKA run course heads through the streets of downtown St. George with panoramic views of breathtaking Red Sandstone Mountains.  

IRONMAN Pro Series 2025

This is the sixth stop on an 18-race schedule at 17 locations which will venture to Australasia, Europe, North America and Africa. The Series has an end-of-year bonus pool totalling $1.7m, that is on top of the prize money awarded for each race.

Winners of full-distance events will be allocated a maximum of 5000 points for winning, with 2,500 awarded in 70.3 races.

Points for all remaining professional finishers will diminish based on the time deficit to first place at a rate of 1 point per 1 second to the first place finish time.  There is no points minimum, or “floor”. Points will accumulate throughout the season.

The male and female pro with the most points at the end of the Pro Series will be crowned IRONMAN Pro Series Champions. A competitor’s best five events will determine their points total.

A cool $200,000 is on offer for the series winner on both the men’s and women’s side, with second earning €130,000 and third receiving $85,000. The cumulative payout for the 2025 season is €2,450,000.