Race Day at IRONMAN 70.3 Alghero: Timeline, Common Mistakes, Plan B

The Days Before

This race is young: the first edition was in 2026, so many details (swim laps, run laps, exact start times) need to be verified in the official 2027 documentation and at the briefing. Don't trust 2026 race reports for course details: use them for the vibe, not for strategy.

• Thursday/Friday: arrive, rebuild the bike, 30-60 minute easy spin on a section of the course. Short swim in the bay of San Giovanni to get a feel for the water: in late May it's cool, roughly around 18 °C, and a wetsuit swim is likely. Test it there, not on race day.
• Friday/Saturday: check-in, briefing (listen to it: that's where they confirm wetsuit rules, laps, and regulations), expo in moderation. Bike check-in Saturday, tire pressure to be rechecked Sunday morning.
• Saturday evening: a dinner you've tested, bags ready, two alarms set. Early to bed, even if you can't sleep: the rest that counts is from two nights before.

Race Morning

• Wake up 3-3.5 hours before the start: tried-and-tested breakfast, nothing new.
• Transition: tire pressure, bottles and nutrition on the bike, Garmin on and shoes set up. Then get out: the less time you spend in there, the less nervous energy you burn.
• Warm-up: if allowed, a few minutes in the water in your wetsuit; otherwise a dry activation with resistance bands.
• Start positioning: with nearly 3,000 athletes expected, your start-group choice matters. Seed yourself in the time bracket you actually swim, not the one you wish you swam. Starting among slower swimmers forces you to slalom; among faster ones, you'll start in the red.

The Race, Decision by Decision

• Swim (1.9 km, sea): first 200 m controlled, then find your rhythm. The water is described as clear: that helps with sighting, but crowded buoys are still crowded buoys. Train open-water group swimming beforehand.
• T1: with cool water, cold hands slow everything down. Practice stripping the wetsuit in training, decide in advance where your goggles go.
• Bike (90 km, roughly 770-850 m of climbing): 72-75% of FTP, a power cap on the short climbs, aero position into the wind. The view over Capo Caccia is magnificent: enjoy it without losing focus on the descents.
• Run (21.1 km, nearly flat): first 3 km held back, then metronome. Ice and sponges at every aid station if it's hot: the seafront has little shade and late May can hit 28 °C.

Common Mistakes (Seen a Thousand Times)

1. Surging on the bike on the short climbs: every spike over threshold is a minute lost in the half marathon. 2. Seeding in the wrong swim wave: it costs energy and nerves in the first 400 m. 3. First run lap too fast: on a flat course, the "easy" post-bike pace is an illusion. 4. Underestimating the sun: no sunscreen, no cap, no cooling plan. You'll pay for it at noon. 5. Anything new on race day: new gels, wheels never tested, wetsuit worn for the first time in cool water.

Plan B, for Every Scenario

• Swim cancelled or shortened (rough seas happen): the race becomes bike-dominant. Don't change your bike pacing to "make up time": there's nothing to make up.
• Strong wind on the bike: forget average speed, ride on watts. Everyone goes slower, positions don't change.
• Hot day: revise your target run pace before the start (5-10"/km slower), double down on sodium and cooling.
• Flat tire or mechanical: stop, breathe, fix it. Five minutes lost calmly beats twenty lost in a panic.

What to Do Right Now

Write your race-day timeline, from wake-up to the start, with real times. And write down the three numbers that run the day: average watts on the bike, power cap on climbs, pace for the first 3 km of the run. The rest is Sardinia, the sea, and a finish beneath the city walls you'll never forget.