Flat grade share
- Marathon du Mont-Blanc, Chamonix 23K
- 15.0% Favoured
Marathon du Mont-Blanc, Chamonix 23K vs Var Verdon Trail Canyon 24K
A data-led head-to-head using sourced race facts and available derived figures under one published methodology.
Data current as ofMarathon du Mont-Blanc, Chamonix 23K or Var Verdon Trail Canyon 24K — which comes out ahead?
Var Verdon Trail Canyon 24K has the stronger available profile on scenery score and conditions.
Route comparison snapshot
Marathon du Mont-Blanc, Chamonix 23K
- Mapped route
- Held
- Elevation profile
- Held
- course flatness
- 40.3%
- flat grade share
- 15.0% Favoured
- lower ascent
- 1,641 m
- climbing density
- 71.3 m/km
- net elevation
- 1,007 m
- maximum grade
- 35.0%
Var Verdon Trail Canyon 24K
- Mapped route
- Held
- Elevation profile
- Held
- course flatness
- Unavailable
- flat grade share
- 12.4%
- lower ascent
- 1,468 m
- climbing density
- 61.2 m/km
- net elevation
- 4 m
- maximum grade
- 54.2%
| Metric | Marathon du Mont-Blanc, Chamonix 23K | Var Verdon Trail Canyon 24K |
|---|---|---|
| Flat grade share | 15.0% ✓ | 12.4% |
| GAP factor (% slower than flat) | 40.3% | Unavailable |
| Uphill share | 60.1% | 41.8% |
| Steep-up share | 41.5% | 33.4% |
| Downhill share | 24.9% | 45.8% |
| Total ascent (m) | 1,641 m | 1,468 m |
| Climbing density (m/km) | 71.3 m/km | 61.2 m/km |
| Longest climb length (m) | 1,800 m | 1,950 m |
| Longest climb gain (m) | 307 m | 344 m |
| Longest climb average grade | 17.1% | 17.6% |
| Total descent (m) | 634 m | 1,464 m |
| Net elevation (m) | 1,007 m | 4 m |
| Max absolute grade | 35.0% | 54.2% |
| Start elevation (m) | 1,039 m | 782 m |
| Finish elevation (m) | 2,046 m | 787 m |
| Scenic score | 92/100 | 100/100 ✓ |
| Conditions | 67/100 | 71/100 ✓ |
GAP factor (% slower than flat)
- Var Verdon Trail Canyon 24K
- Unavailable
Uphill share
Steep-up share
Downhill share
Total ascent (m)
- Var Verdon Trail Canyon 24K
- 1,468 m
Climbing density (m/km)
- Marathon du Mont-Blanc, Chamonix 23K
- 71.3 m/km
- Var Verdon Trail Canyon 24K
- 61.2 m/km
Longest climb length (m)
- Var Verdon Trail Canyon 24K
- 1,950 m
Longest climb gain (m)
Longest climb average grade
Total descent (m)
- Var Verdon Trail Canyon 24K
- 1,464 m
Net elevation (m)
Max absolute grade
Start elevation (m)
Finish elevation (m)
Scenic score
- Var Verdon Trail Canyon 24K
- 100/100 Favoured
Conditions
- Var Verdon Trail Canyon 24K
- 71/100 Favoured
Only metrics available for at least one side are shown. A ✓ marks the better value for each metric (higher-is-better aware). Scores are out of 100 when available. Ascent, climbing density, max absolute grade and median finish describe course or field context and are not marked as better or worse.
Race facts that change the decision
| Fact | Marathon du Mont-Blanc, Chamonix 23K | Var Verdon Trail Canyon 24K |
|---|---|---|
| Schedule | Exact race date not confirmed. Event weekend starts 2026-06-25 (legacy event-level date). | Exact race date not confirmed. Event weekend starts 2026-06-06 (legacy event-level date). |
| Location | Chamonix-Mont-Blanc, France | Aiguines, France |
| Actual distance | 23 km | 24 km |
| raceindex.org mapped route held | Held | Held |
| raceindex.org elevation profile held | Held | Held |
| Course type | Unavailable | Loop |
| Surface | Unavailable | Technical mountain trail: rocky terrain, scree slopes, roots, forest paths and secured handhold/chain passages in the Cirque de Vaumale; very little grassy or runnable flat ground on the longer courses |
| Terrain | Unavailable | Trail |
| Scenery | Waterfront, Mountain, Forest, Countryside, Lakeside | Countryside, Canyon, Mountain, Lakeside, Forest, Riverside |
| Atmosphere | Destination, Community, Wilderness | Wilderness, Scenic Tour, Destination |
| Total ascent | 1,641 m | 1,468 m |
| Climbing density | 71.3 m/km | 61.2 m/km |
| Total descent | 634 m | 1,464 m |
| Net elevation | 1,007 m | 4 m |
| Max absolute grade | 35.0% | 54.2% |
| Flat grade share | 15.0% | 12.4% |
| GAP factor | 40.3% | Unavailable |
| Cutoff | 6:00:00 | Unavailable |
| Field cap | 2,000 | Unavailable |
| Entry model | Ballot | Open |
Schedule
- Marathon du Mont-Blanc, Chamonix 23K
Exact race date not confirmed. Event weekend starts 2026-06-25 (legacy event-level date).
- Var Verdon Trail Canyon 24K
Exact race date not confirmed. Event weekend starts 2026-06-06 (legacy event-level date).
Location
- Marathon du Mont-Blanc, Chamonix 23K
- Chamonix-Mont-Blanc, France
- Var Verdon Trail Canyon 24K
- Aiguines, France
Actual distance
- Marathon du Mont-Blanc, Chamonix 23K
- 23 km
- Var Verdon Trail Canyon 24K
- 24 km
raceindex.org mapped route held
- Marathon du Mont-Blanc, Chamonix 23K
- Held
- Var Verdon Trail Canyon 24K
- Held
raceindex.org elevation profile held
- Marathon du Mont-Blanc, Chamonix 23K
- Held
- Var Verdon Trail Canyon 24K
- Held
Course type
- Marathon du Mont-Blanc, Chamonix 23K
- Unavailable
- Var Verdon Trail Canyon 24K
- Loop
Surface
- Marathon du Mont-Blanc, Chamonix 23K
- Unavailable
- Var Verdon Trail Canyon 24K
- Technical mountain trail: rocky terrain, scree slopes, roots, forest paths and secured handhold/chain passages in the Cirque de Vaumale; very little grassy or runnable flat ground on the longer courses
Terrain
- Marathon du Mont-Blanc, Chamonix 23K
- Unavailable
- Var Verdon Trail Canyon 24K
- Trail
Scenery
- Marathon du Mont-Blanc, Chamonix 23K
- Waterfront, Mountain, Forest, Countryside, Lakeside
- Var Verdon Trail Canyon 24K
- Countryside, Canyon, Mountain, Lakeside, Forest, Riverside
Atmosphere
- Marathon du Mont-Blanc, Chamonix 23K
- Destination, Community, Wilderness
- Var Verdon Trail Canyon 24K
- Wilderness, Scenic Tour, Destination
Total ascent
- Marathon du Mont-Blanc, Chamonix 23K
- 1,641 m
- Var Verdon Trail Canyon 24K
- 1,468 m
Climbing density
- Marathon du Mont-Blanc, Chamonix 23K
- 71.3 m/km
- Var Verdon Trail Canyon 24K
- 61.2 m/km
Total descent
- Marathon du Mont-Blanc, Chamonix 23K
- 634 m
- Var Verdon Trail Canyon 24K
- 1,464 m
Net elevation
- Marathon du Mont-Blanc, Chamonix 23K
- 1,007 m
- Var Verdon Trail Canyon 24K
- 4 m
Max absolute grade
- Marathon du Mont-Blanc, Chamonix 23K
- 35.0%
- Var Verdon Trail Canyon 24K
- 54.2%
Flat grade share
- Marathon du Mont-Blanc, Chamonix 23K
- 15.0%
- Var Verdon Trail Canyon 24K
- 12.4%
GAP factor
- Marathon du Mont-Blanc, Chamonix 23K
- 40.3%
- Var Verdon Trail Canyon 24K
- Unavailable
Cutoff
- Marathon du Mont-Blanc, Chamonix 23K
- 6:00:00
- Var Verdon Trail Canyon 24K
- Unavailable
Field cap
- Marathon du Mont-Blanc, Chamonix 23K
- 2,000
- Var Verdon Trail Canyon 24K
- Unavailable
Entry model
- Marathon du Mont-Blanc, Chamonix 23K
- Ballot
- Var Verdon Trail Canyon 24K
- Open
Facts are shown only when they exist in the sourced race record; Not held means no sourced value is held for that race.