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70.3

IRONMAN 70.3 Ecuador

Sunday, 19 July 2026

IRONMAN 70.3 Ecuador is a 1.9 km freshwater swim, a rolling 92.6 km bike with 535 m gain, then a hot, flat 21 km run where disciplined pacing and consistent carb/sodium/fluid intake decide the day.

Air
22–28°
typical
Wind
5 SW
prevailing
Water
typical — confirm
Bike climb
+535 m
Fueling — per hour
90 g
carbs
1000 mg
sodium
800 ml
fluid
Baseline for a ~5.5 h finish, 70 kg athlete, hot conditions.

Typical 10-year conditions, not a forecast. Water temperature and the wetsuit ruling are set on race morning — check the IRONMAN race guide →

Worlds qualification — slots TBAsee who qualified →
0 km46 km93 km84 m
92.6 km · +535 m climbing
T1 — swim to bike

Your T1 to bike flow should be efficient and calm: grab what you need quickly, put shoes on without rushing, and take 10–20 seconds to fully focus before you nail your first power/pace set. Get your cadence comfortable before you commit—rolling courses punish sudden surges. Have a simple rhythm for fueling: start taking carbs/sodium/fluid early, then keep it consistent. Mentally, plan to handle the wind and hills by staying stable rather than spiking effort on every rise.

During the bike

The bike is 92.6 km with 535 m of rolling elevation, so the key is pacing over profile: keep steady power on the ups and don’t coast too long on the downs. Expect wind around 5 m/s from the SW; treat it like a “load on you” when you’re working into it and a “relief” when it’s behind you—stay smooth with your steering and don’t overreact to gusts. With hot air temperatures (21.7–27.8°C), plan your drinking aggressively early to prevent the day from accumulating heat stress. Fuel to the race target throughout the bike: aim for 90 g carbs/hour and 1000 mg sodium/hour with fluid intake up to 800 ml/hour, and set it on a schedule you can maintain rather than chasing thirst.

Closing notes

Finish the bike with your nutrition on track and your legs ready to run—avoid late-race surges that cost you the first 5 km of the run. Your best takeaway: “steady bike, controlled heat, and consistent fueling” so the run feels like you still have options.

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Weather is a 10-year climatology (typical, not a forecast). Course tracks are approximate, derived for planning — verify against the official course. Maps © OpenStreetMap. Not affiliated with or endorsed by the IRONMAN Group.