SERIES REGISTRATIONS

Picture
Matt with his brother Josh before Josh's first Northwest 50k in 2013.
New in 2025 and expanded in 2026? Series registrations!

We're entirely biased, but running for trails really is the BEST.  And that's why in addition to our in-person and virtual race options, we're adding series registrations for 2025.

SAVE THE DATE(S): OUR 2026 EVENT CALENDAR IS SET
MARCH 21- APRIL 19: Apex Aries (virtual only)
APRIL 18: Cottontail 6- & 12-Hour (virtual April 1-30)
MAY 21 - JUNE 20: Gemini Guppy (virtual only, new swim challenge!)
JUNE 6: Sharlie Shuffle 6- & 12-Hour (virtual June 1-30)
JULY & AUGUST: Summer Shuffle 12-Hour virtual challenge (virtual July 1- August 31)
OCTOBER 10: Sasquatch Shuffle 50k, 30k, 20k  (virtual October 1-31)
OCTOBER 24: Carkeek 12-Hour (virtual October 1-31)

That's our stand-alone calendar. Now if you're ready to combine some options, consider the following series registration options:
  • In-person Shorties: Cottontail 6-Hour, Sharlie 6-Hour, Sasquatch 20k, Carkeek 6-Hour
  • Virtual Shorties: Apex Aries 6-Hour, Cottontail 6-Hour, Sharlie 6-Hour, Sasquatch 20k, Carkeek 6-Hour
  • In-person Long Legs: Cottontail 12-Hour, Sharlie 12-Hour, Sasquatch 50k, Carkeek 12-Hour
  • Virtual Long Legs: Apex Aries 12-Hour, Cottontail 12-Hour, Sharlie 12-Hour, Sasquatch 50k, Carkeek 12-Hour
  • Double Trouble WA: Cottontail 12-Hour, Carkeek 12-Hour
  • Double Trouble ID: Sharlie 12-Hour, Sasquatch 50k
  • Virtual Virtuoso: Registration for all virtual events (yes, all: 60 hours of Apex Aries, Gemini Guppy, all the 12-hour and 6-hour registrations, with a special prize TBD for anyone who manages to do them all)

We've also added a run club competition component in 2026: The run club responsible for the most miles run at our 2026 events will get a special prize. (And if you're part of a run club interested in running Endless Trails events, feel free to reach out: We may be able to offer a group discount code.)

Click here for series registrations!

​Not only do series registrations save you time, as you can sign up for multiple races at once, but they also save you money!