Today IRONMAN announced the official professional starting field for the 2017 IRONMAN 70.3 World Championships in Chattanooga, TN, led by defending champions Tim Reed and Holly Lawrence.

Tim Hola defended his USAT Olympic distance AG overall Masters title by 21 seconds over fellow Coloradan Jim Hallberg.

Starting triathlon at age 40, Adrienne Leblanc won an AG World Championship and 4 national AG titles.

Beautiful images of the 2017 SwimRun USA Casco Bay by gifted photographer Aaron Palaian. Athletes from all over the country tackled this spectacular and tough island to island course in Maine.

In his first serious triathlon, Morgan Pearson shocked USAT Nationals with an overall sprint victory.

There is geometric orthodoxy among tri bikes frames. But not among their aerobars.

Starky led the swim, crushed the bike, held off Hanson’s run; Jackson topped Doehla by 2:54 at Benton Harbor.

Sass improved her 2016 Olympic distance overall runner-up finish with her typically dominant bike split.

Twin, Harvard butterflyer, marine biologist, late blooming triathlete takes overall at USAT Olympic distance AG nationals.

Kirsten Sass and Morgan Pearson win the USA Triathlon sprint distance age group nationals on a drizzly day on Omaha.

Brian Stover, founder of Accelerate3 Coaching, offers a coach’s perspective on Brad Stulberg and Steve Magness’s book, “Peak Performance.” This is the third review in our series.

Kirsten Sass and William Jones win USA Triathlon Age Group Nationals overall.

Pro triathlete Eric Lagerstrom shares behind the scenes commentary from WTS Montreal.

Known as a collaborative rather than combative executive, a partnership and relationship builder. Arrives from Arizona State Athletics.

After near misses, Tim Don and Jeanni Seymour finally won Boulder 70.3 titles. Photo Gallery by Timothy Carlson.

No race is quite like the Norseman Xtreme Tri. Here are images of the race just concluded from taken by Kyle Meyr, courtesy NXTRI

Until recently Nick Kastelein was often referred to as the training partner of Jan Frodeno, but the Aussie recently won IRONMAN Switzerland and and is now making his own name.

Tim Reed’s race-best bike split outweighed Mauricio Mendez’s run and Amelia Watkinson won wire-to-wire at Cebu.

Javier Gomez became the oldest man to win a WTS race with his 14th career WTS victory at Montreal.

Denmark’s Helle Frederiksen dominated wire-to-wire and Johannes Moldan of Germany won it on the bike at Otepää 70.3.

Ashleigh Gentle scored her first WTS win at Montreal, breaking Flora Duffy’s 4 WTS win streak and taking 2nd in Series rankings.

Tim Don and Jeanni Seymour took leads midway through the run to win the men’s and women’s elite titles at Boulder 70.3.

The Norseman Xtreme Triathlon, the most admired race worldwide by Slowtwitchers, streams live here Aug 4, 8pm PST.

Twice Olympic champ Alistair Brownlee elects surgery for his hip, will be out of competition the rest of 2017.