Athlete dies during swimming leg of IRONMAN 70.3 in Madison
2 sources • 1 min read • Latest: Sep 13, 2026, 4:55 AM
Last updated Sep 13, 2026

An athlete died following a medical emergency during the swimming portion of the IRONMAN 70.3 Wisconsin event in Madison on September 12. The participant was pulled from the 1.2-mile course in Lake Monona after the Madison Fire Department received a call for emergency services. Despite receiving life-saving measures from medical staff and EMTs at the scene, the athlete died after arriving at a hospital. IRONMAN officials confirmed the death in a statement while requesting privacy for the individual’s family. This event is a 70-mile triathlon consisting of swimming, biking, and running, serving as a preliminary competition for a longer race held on September 13.
- •An athlete died following a medical emergency during the swimming leg in Lake Monona.
- •Emergency responders and medical staff performed life-saving measures on-site.
- •The athlete was pronounced dead after being transported to a hospital.
- •Two previous deaths occurred during the swim portion of this event in 2019.
- 4:55 AMYahoo Sports — Athlete dies during Madison IRONMAN 70.3 swim in Lake Monona
"IRONMAN officials announced the athlete’s death following the conclusion of Saturday’s race.
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