Lac d'Allier, prior half-distance swim setting
Find a measured stroke before the hills
Use the calm loop to find rhythm without forcing the start.
Seed honestly. Settle into rhythm.
Race Finder IRONMAN 70.3 Vichy.
Race Intelligence · Vichy, France
IRONMAN 70.3 Vichy.
Your best day in Vichy.
A calm Allier swim gives way to the long pull towards La Guillermie and a technical descent. Keep the middle of the bike contained and the flat lakeside run stays available.
The Allier in Vichy. The calmest part of the day comes first.
- Race day
- 22 Aug 2027
- Course
- Swim 1.9 km · Bike 90 km · Run 21.1 km
- Historical air
- 14–28°C
Your day in Vichy
What could you race?
I’m Tom, the coach behind Sense Endurance Coaching. Tell me where you are now and I’ll show you what a strong day in Vichy could look like.
The course behind your race
The climb decides how much run you get.
Vichy changes character sharply after the swim. The useful race is not won by attacking La Guillermie; it is built by arriving back at the lake with enough control left to run well.
Limagne plain, early cycling stage
Begin eating and avoid spending energy before the climb
Use the Limagne plain to settle, fuel and prepare for the climb.
Stay aero. Fuel early.
La Guillermie region, prior bike stage
Cap the climb and descend with attention
Ride the 9.5 km climb with a steady cap, then descend with patience.
Shift early. Brake early.
Vichy lakeside, opening run lap
Let your legs settle after the bike
Use the first pass around the lake to reset after the descent.
Easy first aid station. Check posture.
Parc des Sources and Allier banks, prior run setting
Progress only if the first run section stays comfortable
Progress only when form has held through the opening lap.
Stay tall. Choose the last move late.
What to check in race week
Use the final 2027 half-distance map before fixing targets for the Allier swim, Bourbonnaise hills and lakeside run. The detailed La Guillermie approach comes from the 2026 race; check the current descent, aid and transitions. The full-distance race uses its own bike route, so don't borrow that profile.
Forecast statusToo early for a forecast
A race-day forecast is not meaningful yet; check back closer to the event.
- Temperature
- 14.3–28.3°CDew point centred on 13.1°C
- Wind and gusts
- 6.6 km/hGusts up to 30.2 km/hPrevailing direction WNW
- Rain likelihood
- Up to 55%Wet-surface uncertainty retained
Historical baseline, 2019–2025 · Open-Meteo historical archive · Updated 2026-09-13.Historical comparison only. This is not a forecast for 2027.
Make your finish prediction and I can send this plan to you in race week.
Your plan, in race week
Prepare for Vichy
Build the legs.
Practise the decisions.
A finish range gives you something to work towards. The preparation is specific to this race: Training has to make a long controlled climb, patient descending and a quick transition to flat running feel like one continuous effort.
I’m Tom. With Sense Endurance Coaching, I’ll build that preparation around your life, follow how you respond and adjust the work as you get closer to Vichy.
Explore coachingTrisutto certified80/20 Endurance certifiedBrett Sutton’s Coach the Coach programme
Training on your own? See half distance plans
Method
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