IRONMAN

IRONMAN Vichy

Sunday, 22 August 2027

IRONMAN Vichy is a 3,787 m freshwater swim followed by an 180.5 km, 1,704 m gain hilly bike and a 42.2 km run—so smooth pacing and disciplined fueling matter more than going hard early.

· 322 days to go
Air
15–27°
typical
Wind
3.7 NW
prevailing
Water
—
typical — confirm
Bike climb
+1704 m
Fueling — per hour
typical conditions
90 g
carbs
1000 mg
sodium
+250 mg vs typical
825 ml
fluid
+175 ml vs typical
  • 💧 Plan fluids toward 825 ml/h (cap near 1–1.2 L/h and let thirst be the ceiling). It typically runs hot through the afternoon.
  • 🧂 Lift sodium to ~1000 mg/h.
  • 🍚 Keep carbs at 90 g/h — don't add more in the heat, and keep your drink mix dilute so fluid still empties fast.
  • ⏱️ Sodium preload: ~500–750 ml with ~1,000 mg sodium, 60–90 min before the start.
Build your fuel plan — which gels, how many per hourFuel tool →
Based on 10-year typical conditions (~27°). Baseline for a ~12 h finish, 70 kg athlete. Scale to your own body mass and sweat rate.

Typical 10-year conditions, not a forecast. Water temperature and the wetsuit ruling are set on race morning — check the IRONMAN race guide →

Worlds qualification — slots TBAsee who qualified →
0 km90 km181 km723 m
180.5 km · +1704 m climbing
T1 — swim to bike

In T1, simplify your workflow: set up so you can get shoes/lube/helmet without rethinking. The key is a controlled transition—dry/sock/helmet/gear fast, then mount promptly and get your heart rate down from the swim surge. In the first minutes of the ride, spin easy to find your cadence and settle into the hilly rhythm; avoid the trap of “feeling good” on the downhills and overshooting on the first climbs. Have your first drink/bottle spot and fueling ready so you can start taking carbs and sodium on schedule right away.

During the bike

You’ll cover 180.5 km with 1,704 m of climbing on a hilly course—plan to ride by power/effort rather than ego, especially on the first big punch. With wind around 3.7 m/s from the NW, expect some sections to feel slightly “helped” and others to resist; stay smooth on the cross/into-wind stretches and don’t surge when conditions look favorable. Use the climbs to build strength at steady output, then recover on descents with composure (stay aerodynamic but don’t pin your speed if it makes you tense). Your fueling target is 90 g carbs per hour with 1,000 mg sodium per hour and about 800 ml fluid per hour—aim to start early and keep it consistent through the climbs and longer steady segments rather than waiting until you feel behind. If you’re sweating less, prioritize sodium and carbs; if you’re sweating more or the ride feels harder in warm air, adjust fluid within that overall target and protect your gut with steady intake.

Closing notes

Bike takeaway: treat every climb like it’s stealing the future—hold a steady effort, ride the wind with composure, and hit your 90 g carbs/1,000 mg sodium/800 ml per hour target.

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Weather is a 10-year climatology (typical, not a forecast). Course tracks are approximate, derived for planning — verify against the official course. Maps © OpenStreetMap. Not affiliated with or endorsed by the IRONMAN Group.