IRONMAN Calella-Barcelona

Get calm and efficient in the minutes before the start: do a light warm-up in or near the water, then focus on setting your breathing rhythm early. Seed to match your swim time so you’re not stuck fighting pace groups in the first few buoys. In the first few minutes, settle into a strong, repeatable stroke and avoid sprinting—your goal is smooth acceleration to race pace while your legs feel fresh for the bike.

You’ll swim 3,800 m in freshwater with temperature that varies, so keep your effort controlled in the opening portion to avoid overheating or panic if the water feels different than expected. Because the water is freshwater and temperatures can shift, prioritize consistent breathing and a steady cadence rather than “chasing” faster swimmers. Aim to sight regularly and swim the most direct line you can without crossing into avoidable turbulence or crowding. Fueling during the swim isn’t the priority—save your race fueling plan for when you can drink and take carbs reliably after you start the bike.

Plan a clean swim→bike transition: control your breathing as you come out of the water, then move efficiently through wetsuit/gear handling, shoes, and anything you need to set before you get on the bike. When you mount, immediately stabilize your power and cadence—think “ramp up” over the first stretch rather than jumping to peak effort. Use the first minutes to dial in your fit, hydration intake, and stomach tolerance so you can hold your target fueling rhythm across the full 180.1 km.

This bike is 180.1 km with 611 m of elevation gain and a flat/fast profile, so the course rewards steady power and disciplined pacing rather than reactive surges. With wind at 4.8 m/s from the NW, expect crosswind or slight headwind/tailwind effects at various sections—stay aerodynamic but don’t chase speed if your effort is spiking. Your nutrition target during the bike is 90 g carbs per hour, 750 mg sodium per hour, and about 650 ml fluid per hour; take it on schedule early and stay consistent through the middle and late portions. Because heat is moderate (air temp ranges 15.2–23.1 C), you’ll likely be sweating steadily—start drinking before you feel thirsty and keep the bottle intake regular rather than “catch-up” later.

Plan your T2 bike→run transition: dismount, change into running shoes cleanly, and take 10–20 seconds to re-center your breathing before you accelerate. The legs often feel different right away on an IRONMAN run—expect tightness and focus on smooth cadence in the first kilometers. Keep the first section controlled so you don’t “pay” for it later; the goal is to settle into a sustainable rhythm that matches the moderate heat.

You’ll run 42.2 km; the elevation gain isn’t specified, so treat pacing as the variable you control rather than assuming a particular profile. With moderate heat (15.2–23.1 C typical range) and a coastal breeze, you may feel okay early—use that feeling to maintain effort discipline, not to speed up. The wind can affect how hard segments feel: if it becomes headwind, let pace float a little while preserving your effort consistency, and if it turns favorable, don’t turn it into an all-out push. Continue your fueling strategy on the run at the planned rates (carbs, sodium, and fluid) so your energy stays stable and you don’t hit a late-race bonk from drifting hydration.