Annecy, FR · April 2027
Marathon du Lac d’Annecy
Marathon du Lac d’Annecy: 42.2 km race guide, estimated elevation, typical conditions and a personal pacing and nutrition preview.
- Distance
- 42.20 km
- Elevation gain
- 171 m
- Typical temp
- 5–15 °C
- Cutoff
- 7:00:00
The short version
A genuinely hard course
- Most runners crack near km 32 — fuel before km 30, not at it.
- Full overhead sun from km 7 — sunscreen and run the shaded side.
Next edition
April 2027
Typical race-day conditions
5–15 °C
We lock the real forecast into your plan in race week.
Course difficulty
HardDriven by 171 m of climbing. Harder than KBC Dublin Marathon (5.2), easier than TCS New York City Marathon (5.2) — tougher than 32% of the races we cover.
Race data quality
Medium confidence
Edition-specific course details have not been human-verified
Elevation values are estimates derived from the stored route profile, not official surveyed measurements. Confirm the final route, aid-station positions and supplies with the organizer for your edition.
Elevation profile
Approximate course model
Paid strategy guardrail
Official race packet remains source of truth
- distanzrunning/gpx (community course route)
- Race month per official race calendar
- Open-Meteo historical climate archive (2022–2024)
Step 1 · Free preview
See the course-adjusted plan first
Enter one recent result. The preview returns course cost, first splits, and fuel target from the deterministic engine and the current course data model.
VDOT
49.1
Estimate
3:15:56
Course cost
+2:12
Fuel target
60 g/h
60 g/h needs a trained gut — practise it in training, never try new fuelling on race day. Your full plan tunes this to your experience.
First 5 km preview
full race locked
- km 14:46
- km 24:49
- km 34:36
- km 44:59
- km 54:41
First race free · then €7 Race Pass · no monthly subscription
Uses an approximate course model; verify final logistics against the official race packet.
Step 2 · Your full Marathon du Lac d’Annecy plan
The preview shows the shape. The plan races it for you.
Course preview
Free
what you see now
- Difficulty score & course data
- Course-cost & toughest km
- Your first full plan free, ever
Race Pass
€7
one-time, this race
- Every km split, weather-adjusted
- Nutrition & fluid timeline
- Heat, wind & sun race tactics
- Danger zones + watch file (GPX)
- Race-week forecast & reminders
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Continue with approximate course data →Course elevation
171 m total gain · 162 m loss · max 495 m, min 445 m.
Fly the course
Sun & shade
Sun in your eyes
15 km
Sun on your back
16 km
Side / overhead
12 km
From km 7 the sun sits high overhead — peak UV and radiant heat, so keep sunscreen on and run the shaded side of the road where you can.
Approximate — solar position from the route geometry and a 09:00 start (timezone estimated from longitude), for a mid-pack finishing time.
Race overview
Marathon du Lac d’Annecy is a 42.2 km event in Annecy. The stored course model estimates 171 m of ascent and 162 m of descent. Elevation is an estimate, not an official surveyed measurement. The historical climate baseline is 5–15 °C with 76% relative humidity. This is not the race-day forecast. Use a recent result to build a personal pacing and fuel plan. Check the final route and aid-station services against the organizer's instructions for your edition.
How hard is this course?
Reference table — how the Marathon du Lac d’Annecy compares to a flat sea-level course for four typical fitness levels. Computed from the route profile, mean course altitude, and typical race-week climate (10 °C / 76 % humidity). Your personal strategy uses your VDOT, per-km splits, nutrition timing, and the typical climate baseline for this static sample; paid strategies use Open-Meteo when a verified race date is inside the forecast window.
| Runner | Flat-course finish | Marathon du Lac d’Annecy finish | Course cost | Adjusted pace |
|---|---|---|---|---|
| Beginner (VDOT 35) | 4:16:08 | 4:19:03 | +1.1% | 6:05/km |
| Intermediate (VDOT 45) | 3:28:17 | 3:30:39 | +1.1% | 4:57/km |
| Trained (VDOT 50) | 3:10:41 | 3:12:51 | +1.1% | 4:31/km |
| Competitive (VDOT 60) | 2:43:24 | 2:45:15 | +1.1% | 3:53/km |
Reference nutrition
For a 70 kg runner finishing in 3:12:51 at 10 °C. Adjust to your weight and tolerance — these are ISSN-window targets, not prescriptions.
- Carbs / hour
- 60 g
- Total carbs
- 193 g
- Fluid / hour
- 640 ml
- Sodium / hour
- 500 mg
FAQ
How far is Marathon du Lac d’Annecy?
The distance in this course model is 42.2 km. Check the organizer's final course information for your edition.
How much climbing is in Marathon du Lac d’Annecy?
The stored course model estimates 171 m of ascent and 162 m of descent. Elevation is an estimate, not an official surveyed measurement.
What weather can I expect at Marathon du Lac d’Annecy?
The historical climate baseline is 5–15 °C with 76% relative humidity. This is not the race-day forecast.
When does Marathon du Lac d’Annecy start and what is the cutoff?
The typical start is 09:00 local time and the stored cutoff is 7:00:00. Confirm your edition, wave and cutoff rules with the organizer.
Can I rely on the listed aid stations?
Aid-station positions and services are planning references until confirmed against your edition’s official race packet. Carry your practiced fuel unless the organizer confirms it is provided.
Get your personalized strategy
The numbers above are samples. Sign up free and get the full Marathon du Lac d’Annecy strategy from your VDOT, the current course model, Open-Meteo race-week forecast when available, and your nutrition preferences.
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New to the marathon? Start with our marathon pacing strategy guide or run the VDOT calculator.