E51 Aid Station Planner
All 8 E51 checkpoints pre-loaded. Enter your goal finish time to get estimated arrival times at every aid station.
Full Eiger Ultra-Trail by UTMB - E51 course data: aid stations, cutoffs, course profile
Enter a goal E51 finish time and get estimated arrival times at every checkpoint - 51 km with around 3,100 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 (8)
Cutoff Sat 10:00
Cutoff Sat 11:15
Cutoff Sat 12:45
Cutoff Sat 14:15
Cutoff Sat 17:15
Cutoff Sat 19:15
Cutoff Sat 20:15
E51
Goal 9:41 · Start Sat 07:15
- Crew may meet you at
- Grosse Scheidegg 8.3 km, by Sat 09:07
- First 14.2 km, by Sat 10:01
- Feld 20.3 km, by Sat 11:05
- Faulhorn 25.1 km, by Sat 12:17
- Schwand 38.0 km, by Sat 14:23
- Burglauenen 44.1 km, by Sat 15:31
- Drop bags
- Burglauenen 44.1 km, by Sat 15:31
| 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 07:15 | - | - | - | - | - |
| Grosse Scheidegglikely hiking (pace) | 8.3 | +1006 | 18.8 | 1:52:05 | Sat 09:07 | Sat 10:00 | 53 min | Sat 10:20Set by First | 1:52:05 | 13:26 |
| First | 14.2 | +288 | 9.1 | 2:46:17 | Sat 10:01 | Sat 11:15 | 1h14 | Sat 11:40Set by Feld | 0:54:12 | 9:19 |
| Feld | 20.3 | +295 | 10.8 | 3:50:24 | Sat 11:05 | Sat 12:45 | 1h40 | Sat 13:03Set by Faulhorn | 1:04:07 | 10:25 |
| Faulhornlikely hiking (pace) | 25.1 | +660 | 12.0 | 5:02:02 | Sat 12:17 | Sat 14:15 | 1h58 | Sat 15:08Set by Schwand | 1:11:38 | 14:52 |
| Schwand | 38.0 | +179 | 21.1 | 7:08:02 | Sat 14:23 | Sat 17:15 | 2h52 | Sat 17:42Set by Grindelwald (Finish) | 2:06:00 | 9:47 |
| Burglauenen | 44.1 | +137 | 11.4 | 8:16:12 | Sat 15:31 | Sat 19:15 | 3h44 | Sat 18:50Set by Grindelwald (Finish) | 1:08:10 | 11:11 |
| Grindelwald (Finish)likely hiking (pace) | 51.0 | +535 | 14.2 | 9:41:00 | Sat 16:56 | Sat 20:15 | 3h19 | - | 1:24:48 | 12:20 |
Grosse Scheidegglikely hiking (pace)
Sat 09:07Cutoff Sat 10:0053 minTight
Leave by Sat 10:20Set by First
- Dist (km)
- 8.3
- D+ (m)
- +1006
- Seg time
- 1:52:05
- Seg pace/km
- 13:26
First
Sat 10:01Cutoff Sat 11:151h14
Leave by Sat 11:40Set by Feld
- Dist (km)
- 14.2
- D+ (m)
- +288
- Seg time
- 0:54:12
- Seg pace/km
- 9:19
Feld
Sat 11:05Cutoff Sat 12:451h40
Leave by Sat 13:03Set by Faulhorn
- Dist (km)
- 20.3
- D+ (m)
- +295
- Seg time
- 1:04:07
- Seg pace/km
- 10:25
Faulhornlikely hiking (pace)
Sat 12:17Cutoff Sat 14:151h58
Leave by Sat 15:08Set by Schwand
- Dist (km)
- 25.1
- D+ (m)
- +660
- Seg time
- 1:11:38
- Seg pace/km
- 14:52
Schwand
Sat 14:23Cutoff Sat 17:152h52
Leave by Sat 17:42Set by Grindelwald (Finish)
- Dist (km)
- 38.0
- D+ (m)
- +179
- Seg time
- 2:06:00
- Seg pace/km
- 9:47
Burglauenen
Sat 15:31Cutoff Sat 19:153h44
Leave by Sat 18:50Set by Grindelwald (Finish)
- Dist (km)
- 44.1
- D+ (m)
- +137
- Seg time
- 1:08:10
- Seg pace/km
- 11:11
Grindelwald (Finish)likely hiking (pace)
Sat 16:56Cutoff Sat 20:153h19
- Dist (km)
- 51.0
- D+ (m)
- +535
- Seg time
- 1:24:48
- Seg pace/km
- 12:20
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.
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
About Eiger Ultra-Trail by UTMB - E51
Eiger Ultra-Trail by UTMB - E51 covers 51 km with around 3,100 m of elevation gain, starting in Grindelwald, Switzerland. The overall cutoff is 13 hours.
Crew access is allowed at Grosse Scheidegg (8.34 km), First (14.16 km), Feld (20.32 km), Faulhorn (25.14 km), Schwand (38.02 km) and Burglauenen (44.12 km). Drop bags are available at Burglauenen.
Checkpoint data approximate - verify against the current official race guide at eiger.utmb.world before your race.
The science behind km-effort pacing
Most runners build race pacing plans by dividing total distance evenly - which ignores the fact that an uphill kilometre takes far longer than a flat one. This planner uses TrailMath's enhanced km-effort model to distribute your goal time proportionally by effort, not by distance.
The km-effort formula for each segment is: distance_km + gain_m/100 + loss_m/200. This is TrailMath's extension of the standard ITRA gain-only formula (model TM1, where the descent divisor is a published convention), which adds descent cost because steep technical descents carry real eccentric load. A 5km segment with 500m of gain and 200m of loss has an effort of 5 + 5 + 1 = 11 effort-km - equivalent to running 11km flat. Time is allocated proportionally to this effort score.
Why gain and loss have asymmetric costs. Minetti et al. (2002) mapped the metabolic cost of inclined locomotion across gradients from -45% to +45%. The key findings: metabolic cost rises steeply above 15-20% uphill grade, making power hiking more energy-efficient than running on steep climbs. On descents, eccentric muscle loading (quads acting as brakes) creates its own metabolic cost - steep technical descents are far more demanding than the same gradient on a smooth fire road. The gain/100 + loss/200 asymmetry in the formula reflects this - gain is more costly per metre than loss, but loss is not free.
Power hiking threshold is flagged at segments where your computed pace exceeds 12 min/km (19 min/mile). This threshold corresponds to the crossover point where walking biomechanics become more efficient than running on steep uphill terrain. Strategic power hiking on marked segments preserves leg muscle for descents and reduces overall race time compared to running everything.
This km-effort model is the same formula used in TrailMath's training engine for load calculation (following Dan Johnston's asymmetric elevation scoring methodology), ensuring consistency between how your training load is measured and how your race effort is planned.
Minetti AE et al. (2002). Energy cost of walking and running at extreme uphill and downhill slopes. J Appl Physiol. 93(3):1039-46. Minetti AE et al. (1995). Mechanical determinants of gradient walking energetics in man. J Physiol. 481(Pt 1):235-43. ITRA. km-effort formula. International Trail Running Association. itra.run
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