Saturday, Sep 11, 2021
Registration closes: Tue, Sep 7 @ 11:59PM

COVID19 Protocols

After navigating the labyrinth of COVID restrictions and preparations, we had to cancel the 2020 event due to the wildfires decimating the state and the heavy smoke conditions which persisted over the weekend. We have deferred all registered runners to 2021.

For 2021, the following risk-mitigation protocols will be in place for all Oregon Outside events regardless of progress in vaccine delivery:

1. Aid station volunteers are being equipped with heavy duty rubber gloves, cleaning buckets, and sanitation rags. Drink stations and surfaces are to be wiped down often, and after any large number of runners leaves the station.
2. Spectators must be kept to a minimum. Pacers and crews are allowed to attend throughout the day but we just ask everyone not to gather in large, close groups.
3. Starting areas are spaced in a 10x10’ grid to keep runners away from each other.
4. Any participant having to withdraw for suspected COVID-related reasons will be granted a full value deferral to future events.
5. Packet pickup is on race morning so everyone can stay spread out. All packets are stuffed by hospital-grade clean techniques to prevent contamination.


Welcome to the Timberjack Ultramarathon and trail carnival. This race is graciously approved and permitted within the Deschutes National Forest. Experience the Trail Running Capital of North America! Ponderosa and lodgepole pines line the course as you roll along ancient volcanoes and the Deschutes River valley. Start and finish along the Cascade Lakes Scenic Byway in the shadow of the majestic Mount Bachelor.

The Timberjack is certified, sanctioned, insured, and holds all applicable permits. No part of this is half-assed. A portion of the proceeds from this event is donated to the Central Oregon Trail Alliance (COTA) who build and maintain the awesome trail systems here in Bend.


UTMB Qualification: The 100k is an approved UTMB qualifying race, worth 3 points. Official details at http://

The 100k course features 6500+ ft of elevation gain and is shown below in our interactive course map. The 30k features 2000+ ft of elevation gain over a single-loop course and consists of the larger loop of the 100k course, shown to the east of the starting area. Both courses start and finish at the Wanoga Sno Park and pass the Deschutes River valley.

The course is a championship caliber, three-lap loop course in a contained, family-friendly package.

CUTOFF for the 100k will be midnight (18 hours). There will be a mid-race cutoff at Wanoga at 24.7 and 43.5 miles based on projected finish pace (approx 17:00/mi pace) at 1:00pm and 6:20pm.

PACERS are welcomed and encouraged for the 100k on lap 3 of the big loop (miles 43 to finish). Pacers may join their runner anywhere after mile 43. Anyone starting their 3rd lap after 2:30pm will need to carry a headlamp and a space blanket with them on that final lap.


Registration will remain open until September 8th, 2021. The price increases after June 30th.

There is NO LOTTERY for the 100k. It's first come first serve to experience the Eastern Cascades and Central Oregon high desert in all it's glory.


Anyone good enough to volunteer with us will receive an event shirt as well as big discounts on future events. Want a free entry to next year's Timberjack? Well here you go.

We'll need help with aid stations and sweepers. Please see details by clicking the green "Volunteer" button above.

Swag and Awards

All registered participants will receive an event shirt too sweet. Shirts are gender fitted. Please register before August 7th to guarantee a shirt and proper fit.

Finisher awards to all 100k and 30k finishers. Age group awards as follows: The winner of each age group will receive a special award for both female and male, in 10 year divisions. 19-under, 20-29, 30-39, 40-49, 50-59, 60-69, 70+ for each race 100k and 30k.


This race is vegan and vegetarian friendly. We'll have fully-stocked aid station options including the standard fare as well as more substantial foods and vegetarian options.

This race is also carnivore friendly as we'll be providing post race meals to all competitors. Menu to be determined as we get closer.

Beer to be at the start/finish area (which is also a 100k aid station)... because this is Central Oregon. Giggity. You'll need a photo ID when you pick up your packet so we can verify age for alcohol consumption. Thanks, y'all.

This event is sponsored by Honey Stinger and Tailwind. Their products are proudly offered at the aid stations. Chip-timing is provided by RunningLane.

Packet Pickup

Packets will be delivered on race morning via a drive-thru packet pickup as you enter the Wanoga Snow Play Area. All packets will be stuffed using hospital-grade clean techniques.

Elite and Overall Awards

Who will wear the 100k championship crowns of the Timberjack Queen and Timberjack King? Top 3 overall finishers in each race will be recognized. Overall awards will not double into the age group awards.

Elite entries are available. Please email the RD before registering ( Qualification standards apply.


Dawn is at 6:10am with dusk at 7:50pm (sunrise 6:40am and sunset 7:20pm). Weather in Central Oregon in mid-September is normally dry, sunny, and excellent for ultra running. Cool mornings and evenings, and very predictable. Expect highs around 70 and lows around 40. However because the course ranges between 4000ft and 6000ft you should expect a chance of cold and/or precipitation. The event is highly unlikely to be affected by weather.

If a weather system does roll in, weather breaks over the mountains west of Bend so precipitation is more likely on the west end of the course while it's most likely to be dry on the east end. Be prepared for wind but it's not a particular concern thanks to mountain and tree cover along the course.

The RD reserves the right to cancel or re-schedule the event if weather threatens the safety of runners or volunteers, or if the trails may be significantly damaged by weather + foot traffic. All reasonable efforts will be made to avoid this scenario, but in the VERY unlikely event of a cancellation, deferrals and partial refunds will be arranged.

Local time: 9:22 PM


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