IRONMAN

IRONMAN Vitoria-Gasteiz

Sunday, 12 July 2026

IRONMAN Vitoria-Gasteiz is a 3.8 km freshwater swim followed by a flat/fast 180 km bike (832 m gain) and then a 42.2 km run—your race will be won by steady pacing and disciplined fueling in moderate heat with a light-to-moderate N wind.

Air
14–25°
typical
Wind
5.1 N
prevailing
Water
varies
Bike climb
+832 m
Fueling — per hour
typical conditions
90 g
carbs
1000 mg
sodium
+250 mg vs typical
825 ml
fluid
+175 ml vs typical
  • 💧 Plan fluids toward 825 ml/h (cap near 1–1.2 L/h and let thirst be the ceiling). It typically runs hot through the afternoon.
  • 🧂 Lift sodium to ~1000 mg/h.
  • 🍚 Keep carbs at 90 g/h — don't add more in the heat, and keep your drink mix dilute so fluid still empties fast.
  • ⏱️ Sodium preload: ~500–750 ml with ~1,000 mg sodium, 60–90 min before the start.
Based on 10-year typical conditions (~25°). Baseline for a ~12 h finish, 70 kg athlete. Scale to your own body mass and sweat rate.

Typical 10-year conditions, not a forecast. The official wetsuit ruling is set on race morning — check the IRONMAN race guide →

Worlds qualification — slots TBAsee who qualified →
0 km90 km180 km613 m
180.0 km · +832 m climbing
T1 — swim to bike

For a clean swim→bike flow, keep your routine simple: shoes and nutrition in place, mount efficiently, and take the first minute to settle into cadence and aero position. As you roll out, avoid the temptation to hard-accelerate off the mount—get your heart rate down to race target and establish your fueling early. If you’re navigating a windy start section, stay relaxed and keep steering inputs smooth so the bike feels stable under the N wind.

During the bike

The bike is 180 km with 832 m of total elevation and a flat/fast profile, so the course tends to reward consistent power and steady aero efficiency rather than repeated surges. With N wind at about 5.1 m/s, expect that some sections will feel like head/crosswind gusts depending on your road orientation—stay within your power/effort and don’t chase speed when the wind changes. Fueling is built for endurance: target 90 g carbs per hour, 1000 mg sodium per hour, and about 800 ml fluid per hour, using regular, small intakes rather than waiting until you feel thirsty. Use the flatter stretches to lock into your breathing and cadence, and if you hit slightly tougher wind moments, shift effort to torque/cadence consistency instead of pushing watts higher.

Closing notes

As you near T2, keep your effort controlled—smooth watts beat a last-minute push when the run is next. Start thinking about hydration going into the run: if you’re behind on fluid or sodium, make the last appropriate intake count without forcing large quantities at once. When you get off the bike, step into T2 ready to “spin the first minute” rather than stomp—your legs should feel heavy, and that’s normal.

Results by year

Every edition of this race in our database. The course and conditions can shift year to year — see who qualified and the World Championship slot rolldown for each.

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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.