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Built on bad decisions in Boulder, CO.

Oregon Cascades 100 Mile

Basic Listing
  1. Alpine Running, LLC
  2. 2026 Edition

Point-to-point through Oregon's Cascades — from Bend to Sisters, with all the climbing front-loaded

Directions
Registration OpensDecember 01, 2025
DeadlineJuly 19, 2026
Register

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All trail races in Oregon→
July 25, 2026
Saturday 6:00am PDT start
Bend, OR
United States
100 miles
Point to Point Course
10,900 ft
Elevation Gain
Open Registration
No lottery
Service Requirement
Trail Work or Volunteering or Donation
No Qualifier
No qualifier race required
Very Challenging
Experienced ultrarunners
Fills Up Fast
High demand — register as soon as possible
Links
WebsiteInstagramFacebook
2017
Established

What Makes It Great

A point-to-point journey through the heart of Oregon's Cascade Mountains, connecting the vibrant trail running hub of Bend to the mountain town of Sisters. The course front-loads its challenge — nearly all of the 10,900 ft of climbing is packed into the first 100K as runners ascend toward Mount Bachelor on flowing singletrack, then transition to rugged terrain as the route descends into Sisters Country. Night running is virtually guaranteed, with most of the back half unfolding in darkness. The race is a Western States 100 qualifier and requires a trail work or volunteer service commitment to enter.

Difficulty

Advanced
7/10

Experienced ultrarunners

Technical Terrain
Steep Climbing
Technical Descent
Night Running
Variable Weather
Sun Exposure

Race Highlights

Bend to Sisters point-to-point
Runs from Oregon's premier trail running city to the mountain town of Sisters — 100 miles of Cascade terrain
Front-loaded climbing
All 10,900 ft of gain is packed into the first 100K, making the back half a sustained 11,400 ft descent
Night running guaranteed
32-hour cutoff means most runners will spend 12+ hours running through the Oregon night
Western States 100 qualifier
Finishing earns a WS100 lottery ticket — one of the most sought-after qualifiers in the Pacific Northwest
Service requirement
Entrants must complete 8 hours of trail work or volunteer at an ultra before race day — giving back is part of the deal

Finish Awards

Finisher Belt Buckle
Custom buckle awarded to all 100M official finishers.
Sub-24 Hour Belt Buckle
Separate custom buckle for runners finishing under 24 hours.
Podium Prize
Awards to the top 3 male and female finishers.

Oregon Cascades 100 Mile

Bend, OR, United StatesJuly 25, 2026

July 25, 2026
Course map for Oregon Cascades 100 Mile
DistDistance100 mi
GainElevation Gain10,900 ft
LimitCutoff32.016666666666666666 h
Steep ClimbingTechnical DescentNight RunningVariable WeatherSun Exposure

Entry Timeline

Registration OpensDecember 01, 2025
Service Completion DeadlineService Submission DeadlineRegistration DeadlineJuly 19, 2026
Race DayJuly 25, 2026

Lottery

This event uses open registration - no lottery entry required.

Qualifier

This event does not require a qualifier for entry.

Service Requirement

8 hrsTrail Work
or
8 hrsVolunteering
or
$125Donation

8 hours of trail work with an official organization (PCTA, COTA, STA, or similar) OR volunteering at a trail running event between September 1, 2025 and July 19, 2026. Alternatively, donate $125 to STA or COTA and email proof to [email protected] by July 19, 2026. Crewing and pacing do not qualify.

Qualifying period: September 01, 2025 – July 19, 2026

Submission deadline: July 19, 2026

Terrain

Surface Types
Singletrack78%
Gravel Road20%
Pavement2%
100.0 mi
Distance
Point to Point
Route
32h1m
Cutoff Time
5,190 ft
Average Elevation
10,900 ft
Total Ascent
11,400 ft
Total Descent
6,886 ft
High Point
3,215 ft
Low Point
Course map
Launch Course Explorer

Aid Stations

LocationMileElevation
Pacific Crest Middle School (START)
Start
0.03,812 ft
Aid Station #1: Mrazek
Aid Station
10.14,934 ft
Aid Station #2: Rock Creek
Aid Station
16.86,263 ft
Aid Station #3: Dutchman
Aid Station
25.76,352 ft
Aid Station #4: Swampy Lakes
Aid Station
32.85,801 ft
Aid Station #5: Swede Ridge
Aid Station
38.25,696 ft
Aid Station #6: Skyliners
Aid Station
46.94,747 ft
Aid Station #7: Rock Creek
Aid Station
56.26,263 ft
Aid Station #8: Park Meadow
Aid Station
61.76,339 ft
Aid Station #9: 1514 (1st pass)
Aid Station
71.64,177 ft
Aid Station #10: 1514 (2nd pass)
Aid Station
80.14,177 ft
Aid Station #11: Peterson Ridge
Aid Station
83.33,579 ft
Aid Station #12: Whychus Creek
Aid Station
90.83,251 ft
Sisters Middle School (FINISH)
Finish
99.83,215 ft

Sign in to see cutoffs, crew access, drop bags, and services for every aid station.

On-Site Camping Available

Car camping available at Sisters Middle School (finish line) parking lot on Friday and Saturday nights race weekend. No overnight camping at Pacific Crest Middle School (100M start).

Crew Access Points

Pacer Rules

  • Pacers may join at Skyliners AS (mile 48.1), 1514 AS (miles 73.7/80.1), and Whychus Creek AS (mile 93.4). Runners age 60+ may have a pacer beginning at Swampy Lakes AS (mile 33.4). Only one pacer at a time. Pacers may not carry the runner's gear (water, food, headlamp, etc.) but may eat from aid stations. Pacer bib must be picked up at check-in — not available at aid stations. Pacers must sign a waiver on Ultrasignup prior to check-in.

Crew Rules

  • Crew may access Dutchman AS (mile 26.1), Swampy Lakes AS (mile 33.4), Skyliners AS (mile 48.1), 1514 AS (miles 73.7 and 80.1), and Whychus Creek AS (mile 93.4). Detailed driving directions for each station are provided on the crew guide. Whychus Creek requires a short 1/4-mile walk over a footbridge. No crew at Mrazek, Rock Creek, Swede Ridge, Rock Creek (2nd pass), Park Meadow, or Peterson Ridge — Park Meadow is explicitly no crew per land use permit, violation results in DQ.
Weather
Wildfire Smoke Risk

Wildfire smoke is a significant hazard in late July. The 2025 race was halted mid-event due to AQI exceeding 200. Alpine Running has a formal air quality management policy and will cancel if AQI exceeds 200 pre-race or halt if it spikes mid-race.

Cold/Hypothermia Risk

Overnight temperatures in the Cascades can drop to the upper 20s–30s°F. Warm layers, gloves, and a hat are strongly recommended for the overnight sections.

Rapid Weather Changes

Daytime highs reach the upper 70s–low 80s°F while nights dip near freezing — a 50°F+ swing over the course of the race.

Gear Rules

Trekking poles allowed

Required Gear

No required gear specified

Recommended Gear

No recommended gear specified

Race Reports

Oregon Cascades 100 & 2023 Recap
By Davis Cutter • 2023
Oregon Cascades 100 Race Report
By Dandelion Dilluvio-Scott • 2023

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Register•July 25, 2026