Trick or Treat 5k
Updated
Saturday, October 31, 2026, first start 10:00 AM, in Seattle (5900 Lake Washington Blvd S). Distances: 5K. Entry from $39; the 5K goes from $39 to $44 after October 25.
- Date
- Saturday, October 31, 2026
- Start time
- 10:00 AM (earliest wave)
- Location
- 5900 Lake Washington Blvd S, Seattle, WA 98118
- Area
- Seattle (city), Seattle
- Distances
- 5K
- Course
- Road or path
- Price
- $39 plus the platform's processing fee
- Next price increase
- Sunday, October 25, 2026: 5K $39 → $44
- Registration
- Open. Opened December 5, online signup closes Saturday, October 31, 2026
How to register
Registration is on RunSignup. Pick your distance, add any extras, and you'll get a confirmation email with your bib details. Sign up by October 25 to pay $39 instead of $44.
Register on RunSignup →Race website
Course and race notes
Join us for a spooktacular time at the Trick-or-Treat 5K! Grab your costume, lace up your running shoes, and head to Seward Park for a frightfully fun day of fitness and Halloween festivities!
From the race's own listing. Check the race website for the course map and parking.
Source: RunSignup public race API, refreshed 2026-10-17. Details can change; the registration page is the final word.