70.3 Boulder 2024: Start Lists, Updates & How to Watch the Free Livestream

This weekend it’s time for the Boulder world championships—also known as the long-standing Ironman 70.3 Boulder. With so many pro triathletes living nearby and so many more in town for training camps in between races, the field is nearly always a mix of big names and locals (who are also big names). It’s also the next stop on the Ironman Pro Series, and there’s a lot on the line – specifically, a $50,000 prize purse, qualifying slots to the 70.3 world championship, and up to 2,500 points toward the year-end $1.7-million Ironman Pro Series bonus purse.

The Ironman 70.3 Boulder livestream will be free to watch live on Outside TV and on demand after the finish to all Outside+ members.

The 70.3 Boulder course

If you’ve ever been to Boulder (or if you just follow a lot of triathletes on Instagram), then you know that the Boulder Reservoir is the hub of all triathlon activity. The 70.3 is no different. Athletes will swim in the reservoir, then exit into the rolling roads that make up northern Boulder. With the mountains jutting straight up to the west and the plains to the east, it can be a hilly ride but a fast one at elevation, with Boulder sitting just over 5,200 feet high. That elevation (and thin air!) will likely be a bigger factor on the run, where athletes will be back around the reservoir for two slightly hilly laps on primarily dirt roads (including the famous Monarch Road) and wide trails.

It’s not an easy race, but it is fun to watch.

Who (and how) to follow at Ironman 70.3 Boulder

Boulder will be the fifth 70.3 in the Ironman Pro Series and seventh race so far. As we enter the thick of the season, the race for points is on – remember, the name of the game for the Ironman Pro Series is “every second matters,” with points deducted for every second an athlete finishes behind the race winner. The 70.3 Boulder start list is full of talent, but who will break the finish line tape – and by how much? A few highlights from the lineup:

• Top-seeded American (and Boulder local) Matt Hanson, fresh off a win at 70.3 Chattanooga, will look to add to his points and retain his lead atop the Ironman Pro Series standing.
• He’ll be joined by fellow Boulder resident Lesley Smith, who has racked up several podium finishes at Boulder in recent years.
• 2019 70.3 Boulder champion Chris Lieferman is currently ranked fifth in the Ironman Pro Series standings – a win at Boulder would help him rise even higher in the rankings.
• The same is true for middle-distance specialist and 2018 Boulder champion Ellie Salthouse, who is currently 22nd in the overall series standings. That very well could change if she recaptures the title this weekend in Boulder.
• Trevor Foley, who joined Hanson on the podium at Chattanooga, will look to take the top step for the first time in the series. Foley recently moved to Boulder, so he’ll be looking to make a name for himself in his new town.
• Tomas Rodriguez Hernández, who pulled off the upset of the year (so far) at Ironman Texas, will also show off his speed in Boulder.
• Scheduled to make their Ironman Pro Series debuts: Cam Wurf, Sam Osborne, and Sam Appleton, among others.

Ironman 70.3 Boulder Start List (As of 5/30/2024)

Past Ironman 70.3 Boulder Champions

How to watch the Ironman 70.3 Boulder livestream

The pro races start at 7:05 a.m. MT/9:05 a.m. ET on Saturday, June 8, with the broadcast beginning at 6:45 a.m. MT/8:45 a.m. ET. The Ironman 70.3 Boulder livestream will be free to watch live on Outside Watch, and Outside+ members can view the race on demand after the finish anytime, on any device.

Watch the Ironman 70.3 St. George livestream