Events/La Marmotte Granfondo Alpes

La Marmotte Granfondo Alpes

Road

Date

Sun, 27 Jun 2027

Venue

Bourg d'Oisans -> Alpe d'Huez, French Alps

Countdown

June

Distance

177km

Total climb

5,000m

Five mythical cols in a single day, 177km and 5,000m of climbing from Bourg d'Oisans, finishing up the 21 hairpins of Alpe d'Huez. This is the cyclosportif every climber wants on their palmares.

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The course

The route

177km and 5,000m of climbing across five Alpine cols: Col du Glandon, Col du Telegraphe, Col du Galibier at 2,642m, then a fast valley run to the final ascent of Alpe d'Huez and its 21 hairpins.

Weather

Late-June, Bourg d'Oisans -> Alpe d'Huez

17°CTypical high

7°CTypical low

-1°CColdest in 20 years

40%Days with rain

Highs around 17°C and lows around 7°C, but it has dropped to -1°C. Rain on 40% of days. Pack for the cold end, not the average.

NASA POWER data, 2006-2025, the week either side of race day

Training

Training for the La Marmotte Granfondo Alpes

We don't do generic plans. We combine deep knowledge of this race's demands with your recent training, then build a plan with you that progresses as you do.

Beina integrates directly with your existing tools to understand your current fitness, and synchronise your planned sessions.

Intervals.icu

A 7 to 12 hour Alpine day

Typical sessions

Five major cols back to back, topped by the Galibier at 2,642m, where altitude alone costs 5 to 8% of your power.

Alpe d'Huez begins after 160km, so its 21 hairpins climb 20 to 40% slower than a fresh ascent would.

Valley heat can top 30°C while the Galibier sits near 5 to 10°C, both inside the same ride.

Cutoffs at the Telegraphe, the Galibier and the base of Alpe d'Huez stop any rider who drifts off the pace.

What your weeks look like

Typical sessions

3x20 threshold at 95 to 100% FTP, building the sustained climbing pace each col demands.

40 to 60 minute sustained efforts on a single climb, rehearsing a Galibier-length effort.

Big climbing days: 5 to 8 hour rides stacking 3,000 to 4,500m of ascent, teaching your legs to climb under fatigue.

Heat acclimatisation in the final two to three weeks: warm turbo sessions and post-ride sauna to arrive ready for the valley.

Not a generic schedule

Typical sessions

Built from your current fitness and the time you actually have

Adapts every week as Beina learns how you respond

Syncs your sessions straight to Garmin and Wahoo

One clear next session, never a wall of spreadsheet

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