Kailua-Kona, US · October · Triathlon course reference
Ironman World Championship (Kona)
Triathlon's most iconic race: a 3.8 km ocean swim in Kailua Bay, a 180 km out-and-back bike up the Queen K through the lava fields to Hawi, and a marathon along Ali'i Drive. Defined by heat, humidity and crosswinds.
- Swim
- 3.8 km
- Bike
- 180.2 km
- Run
- 42.2 km
A fast course reference — the bike and run routes, elevation and a flyover in one place (the official site is slow). Pacing a triathlon is power- and discipline-specific, so we don't generate a swim/bike/run race plan here. Official race site →
Bike course
182.46 km · +849 m / −849 m · max 195 m
Run-leg route coming soon — the organiser doesn't publish a downloadable run GPX yet.
Signature sections
Queen K lava fields
Long, exposed out-and-back through black lava with brutal radiant heat.
Climb to Hawi
Exposed bike climb to the Hawi turnaround, notorious for fierce Mumuku crosswinds.
Energy Lab
The run descends into the Natural Energy Lab around km 26-32 — the hottest, most decisive stretch.