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Race the Route: Marathon du Mont-Blanc and the Chamonix Trail Festival
The most famous trail valley in the Alps hosts its festival this weekend, but the Chamonix balcony trails are open all summer. Complete guide to the Marathon du Mont-Blanc and running Chamonix: the five festival distances, the balcony routes, the lift system, gear, travel, and where to base beneath Mont Blanc.
By ZealZag TeamMarathon du Mont-Blanc 2026: The 90K Opens Chamonix's Trail Festival
The Marathon du Mont-Blanc festival is underway in Chamonix — five races across four days beneath the highest summit in the Alps. The 90K flagship circles the valley's high balconies, the marathon climbs to Flégère on Sunday, and the whole town has turned over to trail running for the weekend.
By ZealZag TeamRacing UTMB as a Foreign Athlete: The Practical Logistics of Arriving in Chamonix
Thousands of international athletes race the Ultra-Trail du Mont-Blanc every August, and the non-athletic logistics — accommodation, gear registration, jet lag, drop bags, crew access across three countries — are as demanding as the training. A practical guide to getting to the start line organised.
By ZealZag TeamKMV du Mont-Blanc 2026: A Thousand Metres of Brévent in Under 35 Minutes
Two days from the KMV du Mont-Blanc — the vertical kilometer that opens Chamonix's Marathon du Mont-Blanc weekend. 3.8 kilometres, 1,000 metres of climb on the Brévent's north flank, and a startlist that brings the skyrunning world to the alpine north face.
By ZealZag Team
Race the Mont-Blanc Marathon Route: Chamonix Trail Running Guide
How to train, run, and experience the trails that host the Marathon du Mont-Blanc — Brévent, Flégère, Posettes, and the high Chamonix balcons that define alpine racing in Europe.
By ZealZag Team
Marathon du Mont-Blanc 2026: Chamonix Welcomes the World's Best Trail Runners
The Marathon du Mont-Blanc returns to Chamonix June 25-28 — 90K, marathon, 23K, KMV and Cross — a UTMB World Series cornerstone that gathers the best of mountain running beneath Europe's highest peak.
By ZealZag TeamFlying to Your Ultra: Kit Compliance, Drop Bags, and What Overseas Race Registration Actually Looks Like
The running in an ultra is the part you're most prepared for. The administrative layer — mandatory kit compliance, medical documentation, drop bag logistics, overseas registration, and jet lag before a 5am start — is where first-timers lose hours and sleep. Here is what it actually looks like.
By ZealZag TeamChamonix for Trail Runners: The UTMB Corridor and What the Trails Actually Ask
Chamonix sits at 1,035 metres in the Arve Valley, hemmed in by the biggest peaks in the Western Alps. Trail running here operates on three distinct altitude bands, from accessible afternoon runs at 2,000m to technical high-altitude routes that ask for more than aerobic fitness.
By ZealZag Team