Taylor Knibb Places Second at 2025 IRONMAN 70.3 World Championships, 3 U.S. Age Groupers Win World Titles
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by USA Triathlon
MARBELLA, Spain — U.S. triathletes produced standout results at the 2025 IRONMAN 70.3 World Championship in Marbella, Spain, highlighted by elite women’s silver medalist Taylor Knibb (Boulder, Colo.), U.S. age-group world champions, and top-U.S. elite men’s performance from Seth Rider (Germantown, Tenn.).
A three-time IRONMAN 70.3 world champion, Knibb turned in a commanding performance in Marbella, finishing second overall in the professional women’s field, just weeks after competing at the 2025 IRONMAN World Championship in Kona, Hawaii. She recorded a time of 4 hours, 17 minutes, 55 seconds, powered by the fastest bike split in the race (2:28:36) and a strong run came in 1:20:21. Knibb exited the water in second, took the lead on the bike, but was bested on the run by Great Britain’s Lucy Charles-Barclay, who clocked 4:14:54 for the world title.
On the men’s side, Belgium’s Jelle Geens defended his world title in a dramatic sprint finish, outsprinting Norway’s Kristian Blummenfelt by just 3 seconds over a time of 3:42:52.
For Team USA, Paris 2024 Olympian Seth Rider led the U.S. by placing 14th overall with a time of 3:52:38.
U.S. age-group athletes shone in Marbella, with three U.S. triathletes taking world titles in their respective divisions:
- Sharon Schmidt-Mongrain (Lafayette Hill, Pa.) — Women 50-54 — 5:20:34
- Judy McNary (Louisville, Colo.) — Women 65-69 — 6:11:37
- Eben Jones (Boulder, Colo.) — Men 65-69 — 5:09:20
Congratulations to all athletes who competed!
For full results on the 2025 IRONMAN 70.3 World Championships, visit IRONMAN's website here.
USA Triathlon is proud to serve as the National Governing Body for triathlon, as well as duathlon, aquathlon, aquabike, winter triathlon, off-road triathlon, paratriathlon, and indoor and virtual multisport events in the United States. Founded in 1982, USA Triathlon sanctions more than 3,500 events and races and connects with and supports more than 300,000 unique active members each year, making it the largest multisport organization in the world. In addition to its work at the grassroots level with athletes, coaches, and race directors — as well as the USA Triathlon Foundation — USA Triathlon provides leadership and support to elite athletes competing at international events, including World Triathlon World Championships, Pan American Games and the Olympic and Paralympic Games.
