Endurance Grid lists fifteen 70.3 triathlons across the US, from November 2026 to August 2027 across 10 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 June and May, with the most in Michigan, Florida, New York, and North Carolina.