Endurance Grid lists eighteen 70.3 triathlons across the US, from September 2026 to July 2027 across 13 states.
A 70.3 (half-Ironman) triathlon totals 70.3 miles: a 1.2-mile swim, 56-mile bike, and 13.1-mile run.
70.3 triathlons are busiest in May and June, with the most in Florida, New York, North Carolina, and Iowa.
Endurance races happening in the next 7 days, in date order. Browse what’s coming up and sign up soon.