Overview
The Oregon Cascades 100M is a point-to-point ultra that connects two of Oregon’s most iconic mountain towns. From the start in Bend, the course flows across smooth singletrack before throwing down rugged climbs and descents, then finishing on the Sisters Middle School track with community, celebration, and an unforgettable buckle waiting for you.
Don’t be fooled by the numbers. With 10,700ft of gain packed into the first 100K, this race has a sting in its tail. The reward? Sweeping views of Mount Bachelor and the Cascade peaks, 84% flowing singletrack, and the distinction of finishing one of the Pacific Northwest’s premier ultras.
Saturday, August 23, 2025
Registration
Opens
Nov 1, 2024, 12:00 AM
Closes
Aug 17, 2025, 12:00 AM
Registration Fee
$395

Western States Qualifier

UTMB Index Qualifier
Official race details:
Course
Distance:
100
M
Course type:
Unknown
Elevation gain:
▲
10,700ft
Elevation loss:
▼
11,200ft
Max altitude:
7,600ft
Start time:
Aug 23, 2025
6:00 AM
Cutoff time:
32HR
Course Description
The 100M course is 84% singletrack, 12% dirt road, 2% two-track, and 2% pavement. Runners start at Pacific Crest Middle School in Bend and climb steadily toward the high country near Dutchman Flat, with big climbs and technical terrain stacked into the early miles. After mile 60, the course trends downhill toward Sisters, with long, runnable sections and fast forest trails. The finish brings you onto the Sisters Middle School track where family, friends, and fellow runners are waiting.
Logistics
Nearest airport: Redmond Municipal Airport (RDM), 30 minutes to Sisters and 25 minutes to Bend.
Bend, Oregon offers large city amenities with lodging, restaurants, and breweries.
Sisters, Oregon provides a small-town mountain atmosphere and is home to the finish line.
Driving Directions
Parking
Parking is available at Sisters Middle School, the finish line.
A $35 one-way shuttle runs from Sisters to the start in Bend on race morning, leaving at 4:30AM sharp.
Crew parking is available at designated aid stations and must follow all volunteer guidance.
Lodging
Left Coast Lodge in Sisters is the official race partner, offering discounted rooms and a recovery zone for runners. Numerous additional lodging options are available in Sisters and Bend.
Aid Stations
There are 13 full-service aid stations. Each provides peanut butter and jelly sandwiches, Precision chews and gels, electrolyte drink, water, soda, ginger ale, chips, cookies, and other trail fuel. Night stations (AS8–AS13) feature hot food including broth, soup, quesadillas, bacon, and pancakes. Every aid station is staffed by dedicated volunteers who bring energy and encouragement to keep you moving forward.
Race Requirements
Runners must be prepared for mountain weather that can shift rapidly. Headlamps are required for night running. Race directors strongly recommend ultramarathon experience before attempting the 100M.
Trail Work
Policies
Cancelations & Deferrals
Refunds & Credits
No transfers to other runners. No exceptions.
Cancel more than 30 days before race day → you’ll receive 50% credit toward the same event the following year.
Cancel within 30 days of race day → no credit, no refund, no transfer. Please don’t ask—we keep this policy consistent for everyone.
How to Cancel for Race Credit
You must cancel 30+ days before the event to receive 50% credit.
Log into your Ultrasignup account.
Go to your registration history.
Cancel your entry.
That’s it—your spot will be released, and 50% credit will automatically roll to next year’s event.
Important: We cannot make exceptions, even for medical reasons or injuries.
Pre-Purchased Items
Gear like shirts, hats, pint glasses, or other add-ons must be picked up in person during race weekend check-in. Anything not collected will not be shipped.
Switching Distances
You can move up or down in distance before race day only.
If the distance you want is sold out and has a waitlist, you’ll need to join the waitlist—we can’t move you ahead of others.
Dropping down? No refunds.
Moving up? You’ll need to pay the difference before being added.
To switch, please email the race directors.
Race Cancellation
If we are forced to cancel an event and it cannot reasonably be rescheduled, there will be no refunds, no credits, no rollovers.
Other Notes
Personal checks are not accepted.
Reserved spots: Alpine Running holds a number of entries for sponsors and partners, outside of regular registration.
Pregnancy Deferral
We proudly offer a deferral for runners who are pregnant.
Eligibility: Any registered runner who is pregnant or becomes pregnant after registering.
Steps:
Submit a written Pregnancy Entry Deferral request to the Race Director before race day.
Provide confirmation of pregnancy or proof of birth from a physician, midwife, or other medical professional.
Your entry will be deferred for 1 year.
Dogs
Dogs are not permitted on the course or in race shuttles. Pets are allowed at the finish area in Sisters but must remain leashed and under control at all times.
Kids
The race does not offer a separate kids race, but families are encouraged to bring children to cheer at the finish line in Sisters. Children must remain supervised at all times.
Crew, Pacers & Spectators
Crew is allowed at designated aid stations including Dutchman, Swampy Lakes, Skyliners, 1514, Whychus Creek, and Met Win. Crew must follow parking instructions, respect volunteers, and leave no trace.
Visitors can cheer at the finish in Sisters and enjoy the vibrant mountain town atmosphere.
Volunteers
Every race has a secret sauce—and it’s not the aid station snacks. It’s the volunteers. Without their energy, smiles, and hard work, none of these events would happen.
Volunteering is a chance to give back to the trail running community, cheer on runners from a different perspective, and maybe even scope out what racing feels like before signing up yourself. Whatever brings you to the volunteer crew, we see you as partners—and we celebrate you like the trail heroes you are.
What You’ll Get as a Volunteer
At Alpine Running races, volunteers receive:
A quality race t-shirt (wear it with pride!)
A post-race meal and beverage—because good food tastes even better after trail magic
Race credit toward a future Alpine Running event
A Few Ground Rules
To keep things fair and sustainable, here’s how volunteer benefits work:
Credits expire within one year of being issued.
Credits don’t apply to volunteers associated with race sponsors.*
Credits and race-day perks are for folks who sign up ahead of time and fill their assigned role.
Credits can only be redeemed online during registration.
Alpine Running reserves the right to adjust credits, restrictions, or benefits if needed.
*If you’re part of a sponsor team, reach out to Alpine Running to learn more about your special perks!