IRONMAN 70.3 World Championship 2021: Date, time and WATCH LIVE!

The countdown is on to St George and the 2021 IRONMAN 70.3 World Championship - here is all you need to know ahead of time.

Last updated -

This is a preview of the 2021 IRONMAN 70.3 World Championship – you can access full race reports and result on how Gustav Iden and Lucy Charles-Barclay claimed the top steps on their respective podiums.

The IRONMAN 70.3 World Championship 2021 lands in St. George, Utah today as the world’s finest half-distance triathletes take centre stage and you can follow it all live on TRI247.


How to watch IRONMAN 70.3 Worlds live!

Thanks to IRONMAN again making live streaming of the 70.3 World Championship available via its Facebook Watch facility, you can watch the race live without leaving Just click on the video embed directly below.

2021 Intermountain Healthcare IRONMAN 70.3 World Championship Professional Race Coverage

Top professional triathletes from around the world will vie for the 70.3 World Championship title in the shadows of the stunning red rock canyons in St. George, Utah at the 2021 Intermountain Healthcare IRONMAN 70.3 World Championship presented by Utah Sports Commission.

Posted by IRONMAN now on Thursday, 16 September 2021

Who is racing in St George?

With the postponement to February 2022 of the IRONMAN World Championship in Kona, St. George has now become the ‘A’ race for many endurance athletes this year, with all eyes on the big showdown on September 18.

Several athletes have already experienced the course this year – Lionel Sanders and Daniela Ryf earned victories there back in May. Canadian Sanders of course enjoyed that epic duel with American Sam Long before finally claiming his win.

There are certainly some enthralling storylines for triathlon fans to get their teeth into heading into the event – now the first of two consecutive years where St George will host the event (2022 is also locked in).

Olympic and World Triathlon Championship Series champion Kristian Blummenfelt is set to compete in his first middle-distance race for almost two years. Will his speed translate to making history by winning all three an a single season?

The aforementioned Ryf meanwhile is targeting her sixth 70.3 world title as she bids to put the miserable memory of that Collins Cup defeat by Taylor Knibb behind her (Ryf raced despite waking up unwell on race day in Slovakia).

NICE, FRANCE - SEPTEMBER 07: Daniela Ryf of Switzerland (C) (first place), Holly Lawrence of Britain (L) (second place) and Imogen Simmonds of Switzerland (R) (third place) pose for photographers at the finish line during IRONMAN 70.3 World Championship Women on September 07, 2019 in Nice, France. (Photo by Pablo Blazquez Dominguez/Getty Images for IRONMAN)
The top-three from Nice 2019 return. Holly Lawrence (L), Daniela Ryf and Imogen Simmonds (R)
Photo by Pablo Blazquez Dominguez/Getty Images for IRONMAN

Knibb meanwhile is set to take up the slot she earned by finishing second behind Emma Pallant-Browne in Boulder recently?

Taylor Knibb Collins Cup Finish 2021
Taylor Knibb of Team USA wins her race at the 2021 Collins Cup in Samorin, Slovakia.

Can British superstar Lucy Charles-Barclay finally make it to the top of the World Championship mountain after four second-place finishes in the past – one at 70.3 and three at the IRONMAN World Championship in Kona?

Lucy Charles-Barclay races at Ironman 70.3 World Championship in Nice, France on September 7, 2019
Photo Credit: Red Bull Content Pool

On the men’s side can Gustav Iden – who was in imperious form at the Collins Cup last month – defend the crown he won so brilliantly in Nice in 2019? Or will his compatriot Blummenfelt continue to carry all before him in 2021?

Kristian Blummenfelt, Edmonton
Olympic Champion. World Triathlon Champion. IRONMAN 70.3 champion next?

Young guns George Goodwin, Magnus Ditlev, Daniel Bakkegard and Kyle Smith are among the men who carry the hopes of the ‘next generation’ while Sanders, Javier Gómez, Michael Raelert, Tim Reed and co. provide formidable veteran opposition.

George Goodwin / IRONMAN 70.3 European Championship Elsinore 2021
Can George Goodwin claim a European and World Championship double?
Photo by Alexander Koerner/Getty Images for IRONMAN

Here is all you need to know ahead of a mouthwatering Saturday in St George.


Date and start time for IM 70.3 Worlds

Unlike previous years, the IRONMAN 70.3 World Championship will see both the men’s and women’s pro races take place on the same day – Saturday September 18, 2021.

The pro men’s race will be the first to get under way at 0700 local time or 0500 on the East Coast of the United States (1400 UK/1500 CET) with the women’s pro race beginning 10 minutes later at 0710 local time/0510 Eastern (1410 UK/1500 CET).

Age-group racing will then begin at 0725 local time.


IM 70.3 World Championship Previews

We have a ton of preview content on TRI247 ahead of the action in St George:

The course: St. George, Utah

As those who took on IRONMAN 70.3 St George earlier in 2021 already know, the course is a challenging route which will require peak performance to contend at the front end of the field.

A 1.9km swim in the Sand Hollow Reservoir starts the competitors off – a single-loop course finishes adjacent to the start line with T1 awaiting the field on the shore.

A technical bike course, 90.1km in length, takes the competitors around the south end of Sand Hollow Reservoir before turning north, then west towards the more technical part of the course.

IRONMAN 70.3 St. George / IRONMAN 70.3 World Championship 2021
Photo by Donald Miralle/Getty Images

The final 30km of the bike starts with a relatively steep climb of some 1000 feet over 10km before dropping back down on the final 20km of the bike into T2.

The 21.1km run takes the athletes on a two-loop course with two 500-foot climbs and descents to test the legs in the final stages.

IRONMAN 70.3 Worlds prize money

The prize purse for the IRONMAN 70.3 World Championship in 2021 stands at a total of $350,000 with the winners taking home a cool $50,000 each for their efforts.

The prize purse will pay 15-deep and is an increase of $100,000 on the 2019 race held in Nice, France.

The prize breakdown is as follows:

  1. $50,000
  2. $25,000
  3. $18,000
  4. $12,000
  5. $10,000
  6. $8,500
  7. $8,000
  8. $7,500
  9. $7,000
  10. $6,500
  11. $6,000
  12. $5,500
  13. $4,500
  14. $3,500
  15. $3,000

Recent IRONMAN 70.3 World Championship winners

PRO Women


Stuart Dick
Written by
Stuart Dick
Stuart is a graduate of the University of Sunderland with a masters' degree in Sports Journalism. He spends a lot of his time running and cycling around West Yorkshire, England.


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