Stumptown Trail Runs 50K & Half Marathon

Memorial Day weekend races in Forest Park

May 25th–27th

50K Course

Get ready for a course that will show you the true beauty of the diversity of the trails in Forest Park!  A course that was developed by runners who have spent many hours on these trails. There is 4,000′ of gain.

50K Interactive Caltopo Map link (updated with detour)

NOTE: There is a bridge on the Maple trail that was smashed by several trees during a winter storm and that portion of the trail is still closed. We have a detour to get around it that adds about a quarter-of-a-mile. You’ll turn up the Koenig trail, right onto Leif, and right to go down Firelane 4 to get around the bridge. The aid station distances are updated below and we’ve extended the cutoff at aid station #3 by 15 minutes.


Aid Stations/Drop Bags

There are four fully stocked aid stations. You can count on GU gels, GU Hydration electrolyte drink, PB&J, bananas, chips, M&Ms, gummy bears, water, and other ultra-fare. You are welcome to carry your own aid.

There are no drop bags on course.

Go Beyond Racing is cupless. You’ll need to bring your own cup for liquid aid at all aid stations. Read more about what it means to be cupless.

Aid Station Segment
Toilet Cutoff
AS 1 (Firelane 1) 7.7 7.7  No
AS 2 (Trillium) 7.4 15.1 No
AS 3 (Saltzman) 6.1 21.2  Yes  1:45 pm
AS 4 (Firelane 1) 6.3 27.5  No
Finish 4.2 31.7 Yes


There is a cutoff at the Saltzman/3rd aid station (mile 21.2). All racers must leave this aid station by 1:45 pm. Runners who do not make this cutoff will wait with the volunteers to break down the aid station and get a ride back to the start/finish.

Crew & Spectators

There is no spectator parking at the aid stations. The best place to spectate is at the start/finish area, but you can walk to anywhere along the course from the start/finish, or any trail access points in the park other than the aid stations.

Crewing, from anywhere, is not allowed.