IRONMAN 70.3 Vitoria-Gasteiz

Arrive with a short, easy warm-up in fresh water if available, then do a few build efforts (e.g., faster 15–30 sec intervals with full recovery) so your first strokes feel strong on contact. Since seeding affects your first 3–5 minutes, pick your spot based on your realistic swim pace and commit—don’t chase feet immediately. On the gun, focus on clean technique and sighting confidence; settle into rhythm quickly rather than sprinting the first length.

You’ll swim 1899 m in freshwater where the temperature can vary, so start slightly conservative and let effort rise as your body warms. Expect typical pack turbulence at the start—keep your breathing smooth and avoid wasting energy on every minor surge. The key pacing goal is to arrive on the bike controlled, not gassed: hold a steady cadence through the middle portion and only push if you’re still under control. Fueling during the swim should be minimal; focus on executing a calm, efficient line and set up an easy transition.

Plan T1 as a quick, practiced sequence: exit with enough time to stand and dry off lightly (if allowed/needed), grab glasses/helmet, and get your shoes on with one clean motion. Keep your first pedal strokes conservative as your legs go from swimming/standing to cycling—focus on smooth torque, not high cadence chaos. As you clear the first busy area, then begin ramping toward your steady power and fueling schedule.

The bike is 90 km with 379 m of gain and a flat/fast profile, so it rewards consistent output rather than surging. With wind at 5.2 m/s from the N, expect small crosswind effects on sections where roads open up—stay relaxed on the bars, keep your line steady, and use smooth steering inputs. Aim to drink and fuel on schedule from early in the ride: target 90 g carbs per hour, 1000 mg sodium per hour, and 800 ml fluid per hour, and adjust if you’re not taking in enough volume. Because the air temperature range is 14.7 to 26.6 C, you’ll likely feel cooler early and then warmer mid/late—start slightly ahead of thirst, and prioritize fluids when conditions ramp up. If the day trends warmer, be careful not to overdraft intensity on the flatter sections; the run is 21.2 km and only 30 m of gain, so manage fatigue early.

For T2, get your nutrition plan ready while you’re still cycling: by the time you dismount, you should know what you’ll be taking at the next aid stations. In T2, focus on getting moving quickly—keep your posture tall for the first few minutes and let your legs find their rhythm gradually. Off the bike, expect a brief stiffness phase; settle into an efficient stride and controlled breathing before you increase pace.

The run is 21.2 km with only 30 m of gain and a flat/fast profile, so your pacing discipline determines your finish. With moderate heat (air up to 26.6 C) and a North wind earlier that can keep conditions stable, your goal is to prevent dehydration and overheating before you chase speed. Start steady for the first several kilometers—don’t “make up time” right away because the flat course can trick you into overreaching. Keep your fueling strategy consistent with race targets: 90 g carbs per hour and 1000 mg sodium per hour, and drink to stay near your fluid target of 800 ml per hour. Use the early kilometers to lock in rhythm, then build if you feel in control; if you feel gut distress or rising heat stress, adjust by taking smaller, more frequent intakes at aid stations rather than skipping.