IRONMAN 70.3 Subic BayVerified
IRONMAN 70.3 Subic Bay: 91 km bike leg, 593 m of climbing. Elevation profile, what the terrain asks of you, the weather this race day usually brings, and how to pace this course.
Course intel
Two laps on the SCTEX expressway: start on Dewey Blvd, go via Sampson, Burgos and Rizal Highway onto SFEX and then SCTEX, with the laps starting at 13.2 km and U-turns at 29.3 km and 45.5 km. About 780 m of elevation gain, mostly long gentle expressway grades; early June is the start of the Philippine rainy season, hot and muggy.
Source: Adapted from the official course description (the course page on ironman.com)
The terrain on this course
- Flat (±1.2%) makes up 62%
- Main climb 4.6–6.5 km: 89 m of gain (avg 4.6%)
- Main climb 6.8–8.2 km: 48 m of gain (avg 3.6%)
- Main climb 83.0–84.0 km: 47 m of gain (avg 4.7%)
Speed score
Rolling terrain is where you overspend without noticing: 20 extra watts on every little rise adds up and empties your legs for the back half. Let power touch the top of the range on the small stuff and leave it there.
Historical race-day weather (around 06-07): 28.4°C · Wind 2.0 m/s
0 to 100, and the higher it is the easier it is to post a good time. Points come off for terrain, for corners, and for the heat and wind this race has actually had over the last five years at the same time of year. Full explanation in the article “How the course score works”.