Course guide · 2027

Eiger Ultra Trail E101 2027: course profile, climbs and aid stations

By Guglielmo Published · Organiser's figures checked

The E101 - Ultra Trail is 100.7 km with ↑ 6,391 m of climbing, a loop from Grindelwald: 147 flat-equivalent km. No single climb dominates; the biggest is ↑ 948 m in 4.7 km from Wengen to Männlichen, very steep. Faulhorn, 2,672 m, is the high point.

Race day: Saturday, 17 July 2027, start at 04:00 in Grindelwald; time limit 25:00. Part of Eiger Ultra Trail by UTMB, 14 – 18 July 2027, Grindelwald, Switzerland.

Course facts · 2027

Distance
100.7 kmOrganiser
Gain
↑ 6,391 mOrganiser
Loss
↓ 6,390 mOrganiser
D+ per km
63 mOrganiser's figures
Flat-equivalent
146.6 kmPendio, from the GPX
High point
2,672 mPendio, from the GPX

Header: 101 km and 6,700 m; this page uses the course table. GPX: the organiser's 2026 file.

Elevation · E101 - Ultra Trail peak 2,672 m
0 km99.1 km
Hardest climb4.7 km @ +20.3 %
Hardest descent6.2 km @ −16.4 %
Distance
99.1 km
Gain
↑ 6,373 m
Loss
↓ 6,373 m
Peak
2,672 m

The GPX's own numbers, a little under the organiser's figures.

Where is the E101 - Ultra Trail decided?

On the climb from Wengen to Männlichen, on Saturday evening, with well over half the work done.

The race starts at four in the morning and goes straight up: the first leg climbs 975 m to Gr. Scheidegg, with the climb out of Grindelwald steep. Then it drops steeply to Bort and climbs steeply again to First; not quite a third of the work is done at Feld, at half past eleven at the time-limit pace. Feld to Faulhorn is the second hardest leg per kilometre, and the climb to Faulhorn is the steepest of the course’s big climbs, very steep. From Faulhorn the way down is long: three legs through Egg and Schwand to Burglauenen, almost all descent, with a steep drop into Schwand. Burglauenen is the halfway mark by effort; at the time-limit pace you are there at ten past five.

The leg to Wengen climbs 737 m in 9 km, most of it in one steep climb straight out of Burglauenen. Then Wengen to Männlichen: 947 m of climbing in under 5 km, with no descent at all. Kilometre for kilometre it is the hardest leg of the course, well over half as hard again as the average. It is also the biggest climb of the race and very steep, 20 % on average; only the shorter climb to Faulhorn is steeper. At the time-limit pace you leave Wengen at half past seven on Saturday evening and reach Männlichen at twenty to ten.

After Männlichen the course turns down, with a very steep drop on the way to Kleine Scheidegg, where four fifths of the work is done, at ten to midnight at the time-limit pace.

The end is long and, at the time-limit pace, all of it is in the night. From Kleine Scheidegg the course climbs to Eigergletscher, then drops about 1,000 m, the biggest descent of the race and steep, to Brandegg: the longest stretch between aid stations. Brandegg to Pfingstegg climbs another 500 m, and the last leg into Grindelwald is short and downhill, steep. At the time-limit pace you reach Brandegg at half past two and Pfingstegg at ten past four, and finish at five on Sunday morning, after a night out.

Organiser's distances and heights; Pendio's shares and clock.

Where does the E101 - Ultra Trail's effort go, aid station by aid station?

Organiser: km, ↑, ↓ and supplies (2027). Pendio: the shares. How we measure courses.
Legkm ↑ m↓ m DistanceEffort
→ Gr. Scheideggkm 8.7 · food 8.7 97555 8 % 10.3 %
→ Bortkm 18.0 · food 9.3 251642 9 % 7.3 %
→ Firstkm 23.5 · food 5.5 66966 6 % 6.8 %
→ Feldkm 30.0 · food 6.5 293328 6 % 5.6 %
→ Faulhornkm 34.9 · food 4.9 676130 5 % 7.1 %
→ Eggkm 40.4 · drink 5.5 39585 6 % 4.0 %
→ Schwandkm 48.3 · food 7.9 187758 8 % 6.0 %
→ Burglauenenkm 54.6 · food 6.3 152811 6 % 5.5 %
→ Wengenkm 63.5 · food 8.9 737361 9 % 9.7 %
→ Männlichenkm 68.4 · food 4.9 9470 5 % 8.5 %
→ Kleine Scheideggkm 78.6 · food 10.2 414592 10 % 8.8 %
→ Brandeggkm 89.9 · food 11.3 4721,183 11 % 10.5 %
→ Pfingsteggkm 96.3 · food 6.4 505452 6 % 6.8 %
→ Grindelwaldfinish · km 100.7 4.4 74427 4 % 3.2 %

The course in detail

Flat-equivalent distance

146.6 km for 99.1 km on the map

Terrain

Climbing 46 %Flat 4 %Descending 49 %

Distance in each grade band
GradeDistanceShare
≤ −20 %10.4 km10.5 %
−20 / −15 %8.6 km8.7 %
−15 / −10 %9.5 km9.6 %
−10 / −6 %8.3 km8.4 %
−6 / −3 %6.9 km6.9 %
−3 / −1 %5.2 km5.3 %
−1 / +1 %4.3 km4.4 %
+1 / +3 %4.2 km4.2 %
+3 / +6 %6.3 km6.3 %
+6 / +10 %8.2 km8.3 %
+10 / +15 %8.4 km8.5 %
+15 / +20 %6.5 km6.5 %
> +20 %12.3 km12.4 %

D+ per 10 km

0–10 km1,046 m
10–20 km383 m
20–30 km842 m
30–40 km696 m
40–50 km330 m
50–60 km775 m
60–70 km962 m
70–80 km717 m
80–90 km181 m
90–99.1 km598 m

Biggest climbs

From (km)Length (km)D+ (m)AverageSteepest 100 m
62.64.7948+20.3 %+31.9 %
31.43.1630+20.6 %+29.2 %
19.04.1602+14.7 %+30.5 %
54.13.8593+15.5 %+29.0 %
0.84.8547+11.3 %+48.4 %

Biggest descents

From (km)Length (km)D− (m)AverageSteepest 100 m
84.46.21,014−16.4 %−27.8 %
14.03.8565−14.9 %−28.2 %
72.62.4463−19.7 %−28.4 %
44.92.7448−16.7 %−28.7 %
94.83.5422−12.0 %−27.1 %

How does it compare?

Organiser: km and ↑. Pendio: the rest. Every course side by side.
Coursekm↑ mD+ per kmFlat-equivalentSteeper than ±10 %
E35 - North Face Trail 36.62,44367 m54.6 km57 %
E51 - Panorama Trail 52.82,86154 m72.2 km46 %
E101 - Ultra Trail 100.76,39163 m146.6 km56 %
CCC 101.46,01559 m143.2 km49 %
Ultra Trail Chianti Castles 124.04,81039 m146.1 km32 %

Plan your E101 - Ultra Trail

Your target time, shared out by effort between Gr. Scheidegg, Bort, First and ten more aid stations, with your clock at each one against the 25:00 time limit at the finish in Grindelwald, the fueling plan and a pace card.

The course and its GPX on the organiser's site ↗ Add to Pendio

Adds the E101 - Ultra Trail 2027 course to your Pendio account, with its aid stations as a race plan. Your phone or browser downloads the file from the organiser's own site, and Pendio checks it against the file this page measured.

Questions

How long is the E101 - Ultra Trail?

100.7 km, ↑ 6,391 m and ↓ 6,390 m, a loop from Grindelwald (the organiser's 2027 figures); their GPX measures 99.1 km and ↑ 6,373 m.

How much of the E101 - Ultra Trail is flat?

Almost none: 4 % of the E101 - Ultra Trail is flat, about 4 km; 46 % climbs and 49 % descends.

What is the E101 - Ultra Trail time limit?

25:00 from the 04:00 start, so the finish in Grindelwald closes at 05:00, day 2; the organiser's course table gives no cut-off before it.

What is the biggest climb on the E101 - Ultra Trail?

↑ 948 m in 4.7 km from Wengen to Männlichen, very steep: 20 % on average, 32 % over its steepest 100 m.