IRONMAN 70.3 Venice-Jesolo

Set your focus for a 1909 m open-water swim: arrive early, get a few minutes of easy warm-up strokes, then do short accelerations (not sprints) so your first 2–3 minutes feel smooth. Seed yourself accurately—aim to start with swimmers close to your pace to reduce contact and conserve energy. For the first minutes in the water, settle into a controlled rhythm, keep your breathing consistent, and don’t chase early gaps. In T1 (swim→bike), have your gear staged the way you’ll repeat it: cap/goggles off quickly, route your transition steps to avoid tangles, and get your cycling shoes on with just enough time to prevent rushing. After you mount, let your heart rate drift down slightly before you commit to your bike power.

The swim is 1909 m, and with water listed at 16.1°C (and wetsuit legality determined closer to race start), expect a cooler start where tight breathing control matters. You’ll likely feel stiff in the first portion, so prioritize smooth technique over speed and keep the same cadence for the middle. With typical coastal conditions, sighting can be the difference between smooth progress and repeated micro-stops—use your sighting plan and stay calm if others crowd your line. Fueling during the swim should be minimal; save your first drink/carbs for after you’re on the bike so you can absorb steadily.

Approach T1 with the mindset: transition fast, then ride controlled. Once mounted, stay easy for the first segment to re-establish rhythm, then smoothly ramp into your planned effort for a flat/fast 90.1 km course. Since the bike leg is essentially low-elevation (62 m total gain), there’s little “free” recovery—your pacing discipline on the flats is what prevents going out too hard. If you’re using a power meter, avoid spiking early just because it feels fast and easy.

You’ll cover 90.1 km on a flat/fast profile with only 62 m of total elevation gain, so the course tends to reward steady power and smooth cadence. Expect wind around 4.7 m/s from the E: when you’re riding with/against the breeze, keep your effort consistent rather than chasing speed changes. If you’re into the wind, allow slightly higher drag fatigue to dictate effort; if you have a tailwind, resist the temptation to surge. Drink and eat on a schedule—your target is 500 ml fluid per hour, 90 g carbs per hour, and 600 mg sodium per hour—starting early so you don’t “catch up” later. Use the flat profile to your advantage: keep your bike handling predictable, avoid unnecessary coasting, and make small nutrition stops only if your system needs them (otherwise stay moving and take fuel on the bike).

Set your T2 plan before you leave the bike: mentally expect the first steps to feel heavy, and focus on quick, light turnover rather than pushing pace immediately. After mounting the run, do a short, controlled warm-up within the first kilometer—keep steps smooth and let your breathing settle. Because the run is flat/fast (20.9 km, 6 m gain), your pacing will determine whether you can stay smooth or fade.

The run is 20.9 km with a flat/fast profile and minimal elevation (6 m gain), so you should feel a gradual “unlock” if you didn’t over-bike. With moderate heat and wind around the day’s conditions, your biggest threat is under-fueling or starting too hot—flat courses often tempt athletes to go out faster than planned. Maintain steady effort and keep your form tall and relaxed, especially when you feel the wind or sun increase perceived heat. Continue fueling consistently on the run based on your target intake. The bike fueling targets (90 g carbs/hr, 600 mg sodium/hr, 500 ml/hr) are your anchor—on the run, aim to keep carbs and fluids regular and match sodium needs as you feel sweat rate changes. Take fluids early and frequently rather than only at aid stations, and don’t wait until you’re thirsty.