PROJECT 171™

Qualification plan · UTMB Mont-Blanc

From winning pace to cut-off

The 2026 race covered 171 km and 10,000 m+. Here is how fast the winner moved, how much time the cut-off allows, and 16 weeks of training to get you to the start line.

Two ends of the same race

BenchmarkTimeAverage paceAverage speed
Blandine L'Hirondel, 1st woman 202621:54:497:41 /km7.80 km/h
Final cut-off46h 30m16:19 /km3.68 km/h

Averages are calculated from finish time over 171 km and include every climb, descent and aid stop. Finish time reported by Trail Runner; montblanc.utmb.world. Cut-offs can change, so check the official page.

Weekly training splits

Climb is shown as a share of your own peak week, so the plan scales to you. General guidance, not a personal prescription.

WeekPhaseClimbFocusKey session
1Base40%Easy, frequent running. Build the habit before the hills.Long easy run or hike 1.5–2 h
2Base45%Easy, frequent running. Build the habit before the hills.Long easy run or hike 1.5–2 h
Weeks 3–16 are for members. See plans

Project 171 is independent of UTMB®. Mont-Blanc race guide · Full 16-week plan with every session