How to pace the Marmotte Granfondo Alpes
Watts for every climb, split times and fuelling. With your numbers, no account and no email.
Good time: steady pace, with the effort where it actually pays off.
Marmotte Granfondo Alpes
How to ride it on these numbers
You are signing up for a long alpine day: about 176 km and 5103 m from Bourg d'Oisans to the top of Alpe d'Huez. Your projected finish around 9h01 with about 502 TSS tells you this is more siege than single climb. Col du Glandon is the first real filter, irregular and mentally tricky. Then the neutralised descent lets you reset before the Maurienne, where the road drags towards Saint-Michel-de-Maurienne and Télégraphe, Galibier and Alpe d'Huez stack up with less recovery.
For a solid time at your 72 kg and 250 W, you win the day by riding just under your limits early. On Col du Glandon aim for around 76% of FTP, roughly 190 W or 2.64 W/kg, and stay seated. Use the Maurienne to sit in wheels and take in about 50-100 g of carbs each hour. Télégraphe should feel steady, saving the first real squeeze for Galibier and Alpe d'Huez.
The classic way to ruin La Marmotte at this level is pushing Glandon like a race and then chasing every move in the Maurienne. If Télégraphe already feels like a fight and you struggle to eat, you are burning your finish. Back off until you can breathe through the nose and talk in short phrases. Hitting Galibier and the Romanche valley still able to eat and spin is your green light for a strong Alpe.
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