Continuing our coverage of road tubeless, our Tech Editor explains the ins and outs of hooked and hookless rim designs.

Beals takes win, Lionel Sanders earns Kona slot; Carrie Lester victorious, Sarah True gets Kona slot.

Haug posts one of women’s fastest Ironman-brand performances while topping IM Copenhagen pro women

Boris Stein of Germany rode 4:03:08 on his way to victory over Denis Chevrot at Ironman Kalmar in Sweden.

Tyler Mislawchuk outsprints two rivals to the line at the 2020 Olympic test event in Tokyo.

Brits Georgia Taylor Brown and Jessica Learmonth crossed line ahead but DQ’d for hand-in-hand celebration.

Maine’s rocky coastline and nearby islands provides another refreshing summer venue for the SwimRun crowd

The only tri in town went belly up. What did the locals do? Put on their own. Here’s the race promoter’s story, in his own words.

Travis Wood of Boise, Idaho and Gabi Broschard of West Lafayette, Indiana take Sprint Nationals overall.

Timothy Reed and Caroline Steffen conquer the heat and opposition at Cebu 70.3.

Jan Frodeno of Germany and Australia resident Amelia Rose Watkinson dominate Ironman 70.3 Gdynia.

Justin Lippert and Rachel Mensch won the USAT Olympic distance Age Group Nationals overall,

Danish star retires at 38, overcame a litany of injuries, won a world title, had a $200,000 year.

With great sadness I learned today that the amazingly gifted photographer and super kind person Michael Rauschendorfer passed away on July 18th after battling cancer.

Often conditions are pretty cold at the Rockman Swimrun in Norway, but the water and air temperatures were surprisingly warm and the racing hot in this ÖtillÖ merit race.

When I go to single-sport national championships, they’re never a fifth of the size and scale of a USAT Nationals. Chapeau to the U.S. NGB.

He’s one of the fastest 40-44 males around, off a background in Flambe, Bowling and Badminton.

This year the Norseman athletes, crews, organizers and volunteers had superb weather and the racing in both events was superb.

Leiferman’s sizzling bike outweighs Butterfield’s killer run; Moench follows Frankfurt win by dominating Boulder 70.3.

Norseman Xtreme rookie Lucy Gossage, Hans Christian Tungesvik reached Guastatoppen first in near-record times.

Corinne Abraham of Great Britain out bikes Pro Women to take Ironman Talinn honors in Estonia.

We dive into tips and tricks specific to tubeless tire sealant. How do you use it or remove it? How often must you add it? What are the best brands?

Susie Cheetham holds off Sarah Piampiano, Kristian Hogenhaug tops Ruedi Wild at IM Hamburg.

Russell turned a 6:51 swim deficit into a 5:04 lead with a killer bike split on his way to win IMLP.