Grand Tour des Cerces, by the numbers
A high circuit of the Cerces massif from Le Monêtier-les-Bains — cols and lakes above the Guisane valley, with the steepest climb of the day saved for last. Every figure on this page is computed from 129 real finishes from the 2025 edition — checkpoint by checkpoint. Not estimates. The actual field.
- Median finish
- 10:40
- hours, all finishers
- Finish rate
- 94.9%
- 129 of 136 starters
- Front of the pack
- 8:18
- fastest 10% finish under
- Women in the field
- 13.2%
- share of finishers
Where your hours would land.
129 finish times, one bar per hour. The median finisher crosses at 10h 40m; the fastest 10% are done under 8h 18m.
When the field actually arrives.
The median finisher's real arrival at all 7 timed checkpoints, and how the field's pace moves segment by segment.
| Checkpoint | KM | Median arrival | Field pace here |
|---|---|---|---|
| Pic du Chardonnet | 10.4 | 1:51 | 1.03× |
| Col de Roches Noires | 18.0 | 3:02 | 0.92× |
| Refuge de Buffère | 26.9 | 4:11 | 0.73× |
| Col du Granon | 36.1 | 5:56 | 1.02× |
| Tronchets | 47.8 | 7:46 | 0.94× |
| Grand Aréa | 52.7 | 9:28 | 1.89× |
| Arrivée | 61.7 | 10:40 | 0.74× |
Field pace: the median finisher's pace on the segment into this checkpoint, relative to their own whole-race average — right/orange = slower than race pace, left/blue = faster. Grand Aréa is the top of that final climb: the field arrives there off the low point of the course, which is why the segment into it is the slowest on the route by a wide margin. Runners who missed a cutoff or dropped are not in the data (finishers only).
The race is planned on paper. It's decided out there.
The slowest stretch of the entire course for the median finisher — 1.89× their whole-race pace, 9h 28m into the race.
The second-hardest segment — 1.03× their whole-race pace, 1h 51m into the race.
The fastest segment on the course for the median finisher — the field moves at 0.73× its whole-race pace into Refuge de Buffère.
Grand Tour des Cerces FAQ
- What is a typical Grand Tour des Cerces finish time?
- The median finish across 129 finishers (2025) is 10h 40m. The fastest 10% finish under 8h 18m; the slowest 10% finish after 12h 14m.
- What percentage of runners finish Grand Tour des Cerces?
- 94.9% across the 2025 edition (129 finishers from 136 starters).
Now run it before you run it.
Fly the full course in 3D, get an ML finish-time prediction built on splits like the ones above, and generate a training plan pointed at race day.
Methodology & sources
Split data: official per-runner checkpoint times for the 2025 Grand Tour des Cerces, 129 finishers at 7 timed checkpoints. All split-derived figures describe finishers only — runners who dropped or missed a cutoff do not appear in split data, so buffer statistics understate how tight cutoffs are for the full field. Medians are used throughout; no figure on this page is modeled or extrapolated.