70.3 Half Ironman Triathlons 2025 - 2026

Half Ironman Triathlons: Distances

Swim: 1.2 miles (1.9 km)
Bike: 56 miles (90 km)
Run: 13.1 miles (21.1 km, equivalent to a Half Marathon)

The Half Ironman triathlon is the perfect challenge for any triathlete looking to step up to middle-distance triathlons. It’s long enough to test your endurance and mental strength but still achievable with a few months of dedicated training. Completing 70.3 miles (or 113 km) of swimming, cycling, and running is no small feat and an accomplishment to be proud of.

Middle-distance triathlons are gruelling, but finding your ideal race shouldn’t be. Whether you’re after a local race or an national event, you’ll find it here on findarace.com. Check out our comprehensive 2025 - 2026 Canadian middle-distance triathlon calendar below and use the “Refine” button to filter by location, date, or terrain to find your perfect event.

Once you’ve conquered the Half Ironman, don’t forget to return and check out our calendar of Full Ironman Triathlons to take your triathlon journey to the next level!