IRONMAN 70.3 Barranquilla

Get to the start early so you can settle your breathing and calm your nerves before you enter the water. If you’re seeded, start near your expected pace to avoid the first-lap traffic; if it’s crowded, go steady for the first 100–200 m and let others sort out rather than forcing position. For the first minutes, focus on long, quiet strokes and a relaxed kick—your goal is to transition smoothly from “survival” to rhythm. Plan to exit and move quickly toward T1: once you’re out, treat the beach/exit area like a controlled cooldown so you don’t spike your heart rate before the bike.

You’ll swim 1914 m in water that’s around 27.2°C, possibly non-wetsuit depending on the official race-morning ruling—confirm the wetsuit decision in the official athlete guide. With coastal conditions and the typical wind effects that can show up during the swim, expect some chop and keep your sighting simple: sight often enough to stay on line, but don’t break rhythm. Aim to settle into an efficient tempo rather than sprinting early; the main risk here is going out too hard and arriving at T1 with too much burn in the shoulders. Fueling during the swim isn’t typically the focus—prioritize controlled breathing now and start your hydration plan immediately after you’re on the bike.

Your T1 flow should be: rack bike cleanly, grab nutrition early, get your shoes on efficiently, and move through mounting with steady legs. On the first 5–10 minutes, keep the effort conservative—rolling terrain + heat + wind often makes people surge on the first climbs and then fade. Focus on smooth pedaling and stable breathing while you confirm your fueling rhythm for the whole bike. If you use a bento strategy, you should be ready to take your first drink/gels within the first part of the ride and then keep it regular.

Ride 90.2 km with about 520 m of elevation gain on a rolling course profile, so you’ll feel repeated changes in demand even if the climbs aren’t huge. The conditions are hot and there’s wind around 7.9 m/s from the NE, which can create noticeable headwind/crosswind segments; expect it to affect speed and comfort more than outright power targets—ride the effort you can sustain. Fueling target on the bike is 90 g carbs per hour with 1000 mg sodium per hour and about 800 ml fluid per hour; take in carbs and fluids in small, frequent doses rather than waiting until you’re thirsty. Because it’s hot, prioritize drinking early and often, using the wind to your advantage when it helps cooling and dressing your pacing when it doesn’t. Keep an eye on your steady output through the rollers—if you feel yourself surging on every rise, drop the effort slightly and let the course “come to you.”

Your T2 goal is to transition from spinning to running efficiently: get off the bike and focus on quick, light steps for the first couple minutes. The legs may feel heavy from heat and rolling demands—keep the first 1–3 km controlled so you don’t compensate too aggressively. Take your first run fluids shortly after you settle into pace; you want to start hydration before you’re already behind. Mentally cue a faster cadence and relaxed upper body—heat often steals form first, and that’s when the run goes long.

Run 21.2 km on a flat/fast profile with only about 65 m of elevation gain, but hot air (25.4–31.1°C) can make it feel harder than the terrain suggests. The NE wind (around 7.9 m/s) can either cool you on exposed stretches or add headwind resistance—stay alert to wind-driven pace swings and don’t chase every small speed change. Your nutrition strategy should continue from the bike: keep carbs coming regularly and use aid stations to maintain fluid and sodium intake, aiming to match the bike’s overall fueling targets as you can tolerate on the run. Hot conditions are the main limiter here—manage by sipping consistently, not chugging, and run with a sustainable breathing pattern rather than forcing intensity early.