Trail RunningUTMB Index Races

Waldo 100k

Trail Running covering 100.5 km with up to 5,120 m D+ in Oakridge (Oregon, United States)

LocationOakridge, Oregon, United StatesShow on map(43.7465° N, 122.4617° W)
Date & StatusDate to be announcedDate TBA
First edition2002
Elevation gainUp to +5,120 m

Waldo 100k is an endurance sporting event in Oakridge, Oregon, US focused on Trail Running. First held in 2002, the event is an established fixture on the endurance calendar. It is part of UTMB Index Races. Key features include Forest, Nature & Off-Road, Mountain, High Altitude.

The competition program features Waldo 100k (100.5 km, +5,120 m D+). The exact date for the next edition is currently open and will be announced by the organizer. Official race regulations, course details, and registration information are provided on the organizer's website (waldo100k.org).

Official website
Waldo 100k in Oakridge (Work: "Alpine Ridge Trail Rocky Mountain NP 2024", Photo: Larry D. Moore, License: CC BY 4.0, Source: Wikimedia Commons)
"Alpine Ridge Trail Rocky Mountain NP 2024" · Photo: Larry D. Moore · Wikimedia CommonsCC BY 4.0
Cropped to 16:9 (960 × 540 px), WebP

Event characteristics

ForestNature & Off-RoadMountainHigh Altitude

Races & distances (1)

CompetitionDisciplineDistanceElevation gainAltitude rangeCourse typeCourse & profile
Waldo 100kTrail Running100.5 km+5,120 m1,150 m - 3,300 mLoop courseRoute & profile
Course & Elevation Telemetry

Course route & map

Waldo 100k100.5 km
Distance
100.5 km
Elevation gain
+5,120 m D+
Elevation loss
-5,120 m D-
Altitude range
1,150 m - 3,300 m
Gradient (Avg / Max)
10.2 % / 18.4 %
Course format
Loop course
100.5 km+5,120 m D+
Start (S)Finish (F)
N20406080FS43.7465° N, 122.4617° W

Elevation profile & course telemetry

Altitude from 1,150 m to 3,300 m above sea level (+5,120 m D+, -5,120 m D-)

Peak: 3,300 m·at 43.4 km·Ø 10.2 %
1,150 m1,867 m2,583 m3,300 m0 km20.1 km40.2 km60.3 km80.4 km100.5 km3,300 m
Event Information & Answers

Frequently asked questions (FAQ)

When and where does Waldo 100k take place?

Waldo 100k takes place in Oakridge, Oregon, US (start area at coordinates 43.7465° N, 122.4617° W). The exact date for the next edition is currently open and will be announced by the organizer.

What races and distances are offered at Waldo 100k?

The competition program features Waldo 100k (100.5 km, +5,120 m D+). The competitions belong to Trail Running.

What is the course layout and elevation profile for Waldo 100k?

The main competition (Waldo 100k over 100.5 km) is designed as a loop course featuring +5,120 m of elevation gain and -5,120 m of elevation loss, ranging between 1,150 m and 3,300 m above sea level. An interactive course map with route visualization, elevation profile, and GPX export is available in the course section on this page.

Where can I find registration and official race rules for Waldo 100k?

Official race regulations, course details, and registration information are provided on the organizer's website (waldo100k.org).