Course map, elevation profile & surface
Fly the course
Follow the route over 3D terrain, mile by mile.
Race-day light
For a 14:10 finish (an estimate) · starting 7:00 AM Aug 1 · headlamp mi 61–the finish. Dark means the sun below civil twilight.
Climbs
7 climbs · 8,645 ft totalbiggest firstConditions typical race-day weather for Aug 1 at the start
Typical = the median of 2016–2025 for Aug 1 ±3 days at the start line; a wet day has 1 mm of rain or more. Historical weather from Open-Meteo.
Race almanac 1 year of this race
Past editions
On race day it reached 68°F at the start, with a low of 47°.
| Year | Start °F | High point °F | Rain | Wind |
|---|---|---|---|---|
| 2026 Aug 1 | 68°/47° | 59°/37° | dry | 10mph |
race-day weather from the Open-Meteo historical archive (ERA5) at the start line and the course high point (7,812 ft).
Reviews what runners who have been there say
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About this course
Waldo 100K — 2026 covers 61.1 mi (98.3 km) with 10,358 ft of elevation gain through Oregon, United States. That is about 169 ft per mile of climbing, and 10,361 ft of descent. The course tops out at 7,812 ft and bottoms out at 4,820 ft. The surface is 98% trail. The profile has 7 sustained climbs; the biggest is the climb from mi 7.3, +2,316 ft over 6.1 mi at 7.2% on average (steepest stretch 27%). Race day is August 1, 2026, starting at 7:00 AM; the sun rises at 5:58 AM and sets at 8:32 PM. Typical race-day weather at the start: a high of 79°F and a low of 54°F, with a 14% chance of a wet day. The interactive map above shows the full route with its elevation profile and aid stations, built from the course's GPS file.
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Course history
- Jul 27, 2026Added to the catalog
Races like this one close in distance, climbing, terrain, altitude, weather and season
- White Pine 50 Backcountry Run — 2026Aug · 50 mi · 175 ft/mi · UTSimilar climbing · Similar weather · High altitude
- Hood Hundred — 2026Aug · 99 mi · 183 ft/mi · ORHigh altitude · Similar climbing · Same month
- Wyeast Trailfest 50 Miler — 2026Aug · 50 mi · 229 ft/mi · ORSimilar weather · High altitude · Same month
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