4-week Winter La Marmotte Granfondo Alpes training plan (Zwift compatible)
If you’re an intermediate cyclist targeting La Marmotte Granfondo Alpes, this plan is designed to help you use the winter months wisely, maintain momentum, and arrive in spring ready to build with confidence. It’s the ideal bridge between winter consistency and the sustained climbing, endurance, and resilience demanded by one of cycling’s most iconic mountain sportives.
Who’s it for?
This training plan is aimed at intermediate cyclists with a solid fitness base who want structure and direction through the winter. Whether you’re coming off a busy season, have taken a short reset, or simply want a clear focus leading into next year, this plan helps you stay consistent while laying the foundations for the long climbs and extended efforts of La Marmotte.
Is it for you?
This plan assumes you’re comfortable riding both indoors (e.g. Zwift) and outdoors, and happy mixing structured quality sessions with longer endurance rides. It’s ideal if you want to stay consistent without burning out, keep variety in your training, and gradually rebuild aerobic capacity, muscular endurance, and climbing strength, all essential for tackling long Alpine ascents like the Glandon, Télégraphe, Galibier, and Alpe d’Huez.
What’s involved?
The plan builds progressively over 4 weeks, balancing structure with flexibility. Each week you’ll work across the key training zones, combining indoor sessions for controlled intensity and efficiency with outdoor rides to develop endurance, strength, and real-world climbing skills. There’s a strong emphasis on aerobic conditioning, sustained tempo and sweetspot work, and fatigue resistance, all crucial for long, uninterrupted climbs at altitude.
The goal isn’t to peak now; it’s to come out of winter fit, motivated, and well prepared to transition into more La Marmotte–specific training as spring approaches.
WhittleFit provides proven, structured endurance training plans for triathletes, cyclists and runners; from first-time racers through to competitive age-group athletes.
Our TrainingPeaks plans combine over 20 years of endurance-sport experience with practical sessions designed for athletes balancing training with real life.
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