IRONMAN 70.3 Nice

Arrive early enough to get a short feel in the water and confirm sightlines at the start. In the first minutes, settle quickly into your lane/seeding—don’t chase every body around you; aim for clean forward progress and a consistent stroke cadence. If the start is crowded, start slightly slower for 100–200 m, then build once your spacing opens up.

You’ll swim 1916 m in water around 25.4°C, possibly non-wetsuit, so plan for a smooth, controlled start rather than an all-out first 1/4. Expect the need to sight more often than usual in choppy pockets; the SE wind can create small surface chop that will add effort, so keep your shoulders relaxed and your kick efficient. Pace to finish the swim with enough composure to transition well—drafting is not the goal; efficient, steady swimming is. Fueling during the swim should be minimal; focus on settling your breathing and prepare to start sipping immediately after you mount the bike.

Set up T1 so you can move straight from “swim mode” to “ride mode”: cap/goggles off quickly, shoes on in a smooth motion, and re-check your hydration bottle placement before you leave the mount line. Once you’re on the bike, focus on getting your legs turning smoothly for the first few minutes—don’t sprint to match other riders right away; treat the opening as a controlled build. In hilly terrain, start with slightly lower power than you think you need, then earn your rhythm on the climbs.

The bike is 91.6 km with 1210 m of climbing, so you’re managing repeated efforts rather than one long steady grind. With hot conditions (air up to 27.8°C) and a SE wind around 3.9 m/s, expect variable cooling: headwinds feel slower and tighter, crosswinds can move you around, and tailwind segments can tempt you into overheating. Aim to ride by sustainability—climb at a controlled intensity, recover on the flats/descents without coasting too long, and be disciplined on power on any roll where you’ll feel better than you should. Fueling target is 90 g carbs per hour with 1000 mg sodium and about 800 ml fluid per hour; take in regularly, not “when you feel like it,” and prioritize drinking early while you still have strong thirst cues. If your intake schedule gets behind, correct gently on the next workable section—don’t dramatically increase volume all at once.

In T2, get your shoes on and your first steps quick and light—your quads may feel “heavy” off the bike, so use a short, controlled first kilometer to find cadence. Don’t try to sprint out of T2; instead, focus on posture (tall chest, relaxed shoulders) and smooth breathing so the legs warm up gradually. With a flat/fast 21 km, you’ll be tempted to push early—reserve the surge for when you’re fully in rhythm.

The run is 21 km with only 32 m of elevation gain, so it should feel like a steady, fast tempo once you’re settled. In hot conditions, the biggest limiter will be heat management, not hills—keep your pace honest in the first half and make sure you’re taking fluids early and consistently. Use the steady SE wind to your advantage when you get into a cooler flow of air, but don’t let it trick you into going too fast; the heat will still accumulate even with a breeze. Fueling should continue on schedule from the bike into the run (carbs and sodium needs remain high); if you feel your mouth getting dry or your stomach slowing down, adjust to smaller, more frequent sips/gels rather than skipping.