Mountain Lakes 100 2026

19.09 – 20.09.2026Olallie Lake Resort (United States)

Pacing, fueling and crew sheet for the course you pick

3’56611’699 m D+ ft D+

160.9 km100 mi100 Miler

At a glance

Mountain Lakes 100 2026 took place from Saturday 19 to Sunday 20 September 2026 in Olallie Lake Resort (Oregon, United States). One distance: 160.9 km.

The course is 160.9 km with 3’566 m D+ (22 m per km: hilly terrain). It has 13 aid stations. Terrain: 94% trail, 3% forest track and 4% road. Terrain data: © OpenStreetMap contributors.

The 2027 edition takes place on Saturday 18 September 2027. On Kliva, plan your pacing and nutrition for free, then send the plan to your watch.

1 course

160.9km100mi
3’566 m D+11’699 ft D+
3’133 m D-10’279 ft D-
avg 2%
100 Miler
19.09. · 13 aid stations
No index
GPX

Course analysis

100 Miler160.9 km100 mi3’566 m D+11’699 ft D+

197effort kmⓘ160.9 km on the map · feels like 197 km100 mi on the map · feels like 197 km

D+: 3’566 m11’699 ft
D−: 3’133 m10’279 ft
Max alt.: 1’761 m5’778 ft
Steepest: 9%

Segments

Elevation profile: 100 Miler

986 m – 1’761 m3’235 ft – 5’778 ft

Terrain

Aid station by aid station

Terrain, climb and cutoff between each aid station.

Start → Olallie Lake Aid Station km 0 → 19.9km 0 → 12.3
19.9 km12.3 mi · +408 m1’339 ft · −403 m1’322 ft
Olallie Lake Aid Station → Pinheads Aid Station km 19.9 → 37.1km 12.3 → 23.1
17.3 km10.7 mi · +283 m928 ft · −377 m1’237 ft
Pinheads Aid Station → Warm Springs Aid Station km 37.1 → 45.9km 23.1 → 28.5
8.8 km5.4 mi · +164 m538 ft · −395 m1’296 ft
Warm Springs Aid Station → Red Wolf Aid Station km 45.9 → 54.6km 28.5 → 34
8.8 km5.4 mi · +294 m965 ft · −201 m659 ft
Red Wolf Aid Station → Clackamas Aid Station km 54.6 → 63km 34 → 39.1
8.3 km5.2 mi · +31 m102 ft · −282 m925 ft
Clackamas Aid Station → Frog Lake Aid Station km 63 → 83.3km 39.1 → 51.7
20.3 km12.6 mi · +409 m1’342 ft · −245 m804 ft
Frog Lake Aid Station → Little Crater Lake Aid Station km 83.3 → 95.6km 51.7 → 59.4
12.4 km7.7 mi · +141 m463 ft · −347 m1’138 ft
Little Crater Lake Aid Station → Dam Aid Station km 95.6 → 103.9km 59.4 → 64.5
8.3 km5.1 mi · +32 m105 ft · −32 m105 ft
Dam Aid Station → Clackamas Aid Station km 103.9 → 110km 64.5 → 68.4
6.2 km3.8 mi · +85 m279 ft · −46 m151 ft
Clackamas Aid Station → Red Wolf Aid Station km 110 → 118.5km 68.4 → 73.6
8.5 km5.3 mi · +283 m928 ft · −28 m92 ft
Red Wolf Aid Station → Warm Springs Aid Station km 118.5 → 127.3km 73.6 → 79.1
8.8 km5.4 mi · +200 m656 ft · −294 m965 ft
Warm Springs Aid Station → Pinheads Aid Station km 127.3 → 136km 79.1 → 84.5
8.8 km5.4 mi · +394 m1’293 ft · −165 m541 ft
Pinheads Aid Station → Olallie Meadows Aid Station km 136 → 149.3km 84.5 → 92.8
13.3 km8.3 mi · +238 m781 ft · −290 m951 ft
Olallie Meadows Aid Station → Finish km 149.3 → 160.9km 92.8 → 100
11.6 km7.2 mi · +174 m571 ft · −31 m102 ft

Elevation figures are measured by Kliva on the course trace. Cutoffs are the organiser's.

Race plan

Plan your race from start to finish.

Pacing, aid stations and fueling timed to your effort on Mountain Lakes 100, in one roadbook.

Includes this race's official aid stations and cutoff times.

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Where to stay

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Editions