18JUL
IRONMAN 70.3 Muskoka
Sunday, July 18, 2027· in 305 days
Huntsville, Ontario
About this race
The Muskoka round of the IRONMAN 70.3 series, based in Huntsville: a 1.9 km lake swim, a 90 km rolling bike and a 21.1 km hilly run.
— from the organizer's listing, read it in full
Open
2027 registration opened August 27, 2026; no deferrals or transfers.
Added from the organizer's own page. RaceFinder links you to the official page — always confirm date and details with the organizer. Your race? Update or claim this listing free →
What race day is usually like
24°/ 16°
typical high / low
36%
of days see rain
In Huntsville this week of the year it is wet about 4 days in 10. This is what the last ten years did — not a forecast. Check one a few days out.
Daily records 2016–2025 for Huntsville, via Open-Meteo.