GRP Tour des Lacs Aid Station Planner
All 10 GRP Tour des Lacs checkpoints pre-loaded. Enter your goal finish time to get estimated arrival times at every aid station.
Full Grand Raid des Pyrénées Tour des Lacs course data: aid stations, cutoffs, course profile
Enter a goal GRP Tour des Lacs finish time and get estimated arrival times at every checkpoint - 80.5 km with around 5,187 m of climbing, with crew and drop-bag points flagged.
Turns every arrival into a clock time and every cutoff into a margin.
Terrain changes how the goal time is shared between segments, not the total. One surface everywhere cancels out.
Checkpoints (10)
Cutoff Sat 09:00
Cutoff Sat 13:45
Cutoff Sat 16:15
Cutoff Sat 18:00
Cutoff Sat 19:30
Cutoff Sat 23:00
Cutoff Sun 02:30
Cutoff Sun 06:00
GRP Tour des Lacs
Goal 17:37 · Start Sat 05:00
- Crew may meet you at
- Restaurant Merlans 15.6 km, by Sat 08:36
- La Mongie 30.5 km, by Sat 11:55
- Tournaboup 50.9 km, by Sat 16:37
- Restaurant Merlans 67.4 km, by Sat 20:10
- Drop bags
The organiser publishes no drop-bag service anywhere on this course.
| Checkpoint | Dist (km) | D+ (m) | Km-effort | Arrive by | Clock | Cutoff | Buffer | Leave by | Seg time | Seg pace/km |
|---|---|---|---|---|---|---|---|---|---|---|
| Start | 0 | 0 | - | 0:00:00 | Sat 05:00 | - | - | - | - | - |
| Restaurant Merlans (outbound)likely hiking (pace) | 15.6 | +1533 | 32.4 | 3:36:06 | Sat 08:36 | Sat 09:00 | 24 min | Sat 10:25Set by La Mongie | 3:36:06 | 13:51 |
| Refuge de Campana de Cloutoulikely hiking (pace) | 23.3 | +499 | 14.3 | 5:11:33 | Sat 10:11 | - | - | Sat 12:01Set by La Mongie | 1:35:27 | 12:24 |
| La Mongielikely hiking (pace) | 30.5 | +397 | 15.6 | 6:55:25 | Sat 11:55 | Sat 13:45 | 1h50 | Sat 14:22Set by Col de Sencours (before Pic du Midi) | 1:43:52 | 14:26 |
| Col de Sencours (before Pic du Midi)likely hiking (pace) | 37.6 | +867 | 16.9 | 8:48:09 | Sat 13:48 | Sat 16:15 | 2h27 | Sat 16:27Set by Col de Sencours (after Pic du Midi) | 1:52:44 | 15:53 |
| Col de Sencours (after Pic du Midi)likely hiking (pace) | 44.0 | +497 | 13.9 | 10:20:58 | Sat 15:20 | Sat 18:00 | 2h39 | Sat 18:13Set by Tournaboup | 1:32:49 | 14:30 |
| Tournaboup | 50.9 | +0 | 11.5 | 11:37:45 | Sat 16:37 | Sat 19:30 | 2h52 | Sat 21:30Set by Refuge d'Aygues Cluses | 1:16:47 | 11:08 |
| Refuge d'Aygues Cluseslikely hiking (pace) | 57.3 | +706 | 13.5 | 13:07:37 | Sat 18:07 | Sat 23:00 | 4h52 | Sun 00:27Set by Restaurant Merlans (return) | 1:29:52 | 14:03 |
| Restaurant Merlans (return)likely hiking (pace) | 67.4 | +511 | 18.4 | 15:10:12 | Sat 20:10 | Sun 02:30 | 6h20 | Sun 03:33Set by Vielle-Aure (Finish) | 2:02:35 | 12:08 |
| Vielle-Aure (Finish) | 80.5 | +177 | 22.0 | 17:37:00 | Sat 22:37 | Sun 06:00 | 7h23 | - | 2:26:48 | 11:12 |
Restaurant Merlans (outbound)likely hiking (pace)
Sat 08:36Cutoff Sat 09:0024 minTight
Leave by Sat 10:25Set by La Mongie
- Dist (km)
- 15.6
- D+ (m)
- +1533
- Seg time
- 3:36:06
- Seg pace/km
- 13:51
Refuge de Campana de Cloutoulikely hiking (pace)
Sat 10:11Leave by Sat 12:01Set by La Mongie
- Dist (km)
- 23.3
- D+ (m)
- +499
- Seg time
- 1:35:27
- Seg pace/km
- 12:24
La Mongielikely hiking (pace)
Sat 11:55Cutoff Sat 13:451h50
Leave by Sat 14:22Set by Col de Sencours (before Pic du Midi)
- Dist (km)
- 30.5
- D+ (m)
- +397
- Seg time
- 1:43:52
- Seg pace/km
- 14:26
Col de Sencours (before Pic du Midi)likely hiking (pace)
Sat 13:48Cutoff Sat 16:152h27
Leave by Sat 16:27Set by Col de Sencours (after Pic du Midi)
- Dist (km)
- 37.6
- D+ (m)
- +867
- Seg time
- 1:52:44
- Seg pace/km
- 15:53
Col de Sencours (after Pic du Midi)likely hiking (pace)
Sat 15:20Cutoff Sat 18:002h39
Leave by Sat 18:13Set by Tournaboup
- Dist (km)
- 44.0
- D+ (m)
- +497
- Seg time
- 1:32:49
- Seg pace/km
- 14:30
Tournaboup
Sat 16:37Cutoff Sat 19:302h52
Leave by Sat 21:30Set by Refuge d'Aygues Cluses
- Dist (km)
- 50.9
- D+ (m)
- +0
- Seg time
- 1:16:47
- Seg pace/km
- 11:08
Refuge d'Aygues Cluseslikely hiking (pace)
Sat 18:07Cutoff Sat 23:004h52
Leave by Sun 00:27Set by Restaurant Merlans (return)
- Dist (km)
- 57.3
- D+ (m)
- +706
- Seg time
- 1:29:52
- Seg pace/km
- 14:03
Restaurant Merlans (return)likely hiking (pace)
Sat 20:10Cutoff Sun 02:306h20
Leave by Sun 03:33Set by Vielle-Aure (Finish)
- Dist (km)
- 67.4
- D+ (m)
- +511
- Seg time
- 2:02:35
- Seg pace/km
- 12:08
Vielle-Aure (Finish)
Sat 22:37Cutoff Sun 06:007h23
- Dist (km)
- 80.5
- D+ (m)
- +177
- Seg time
- 2:26:48
- Seg pace/km
- 11:12
Highlighted rows use a pace heuristic (>12 min/km / >19 min/mi) - likely hiking by speed, not grade. The grade-based power-hike cue is ≥15% (see GAP and Incline tools). Times are distributed proportionally by km-effort. This is a budget, not a forecast: it assumes the same effort pace from start to finish, and in long races most finishers slow as the race goes on, so expect to be ahead of these times early and behind them late.
Leave by is the latest you can start the next segment and still make every cutoff ahead of you at this pace - often set by a station further on, not this one. It does not yet subtract the time you spend stopped, so treat it as the optimistic edge.
Cutoff buffers are estimates from your goal time and published barriers. Courses and barriers change - verify against the official race guide.
Next step
GRP Tour des Lacs course in numbers
- Climbing per km
- 64 m
- ITRA km-effort
- 132 (100K)
- Highest point
- 2,876 m
- Biggest climb
- +1,326 m over 8.0 km at 16.0% (through Col de Sencours (before Pic du Midi))
- Steepest climb
- +430 m over 1.5 km at 26.2%
- Longest descent
- -1,423 m over 11.7 km at 12.1% (down to Vielle-Aure (Finish))
- Track climbing above 3%
- 44%
- Winning time / cutoff
- 10h04 / 25h00 (2.5x the winner's time)
Section-by-section climbs, descents and grades are on the GRP Tour des Lacs course page.
About Grand Raid des Pyrénées Tour des Lacs
Grand Raid des Pyrénées Tour des Lacs covers 80.5 km with around 5,187 m of elevation gain, starting in Vielle-Aure, Hautes-Pyrénées, France. The overall cutoff is 25 hours.
Crew access is allowed at Restaurant Merlans (outbound) (15.6 km), La Mongie (30.5 km), Tournaboup (50.9 km) and Restaurant Merlans (return) (67.4 km).
Checkpoint data approximate - verify against the current official race guide at grandraidpyrenees.com before your race.
How the splits are allocated
Your goal time is split across the GRP Tour des Lacs legs by km-effort: distance + gain/100 + loss/200. Full methodology.
Track your GRP Tour des Lacs plan, crew notes, and live progress in the app
TrailMath uses these models to build periodized plans adjusted to your goals and terrain.
Start free