Big Backyard 5K/10K
Sun, Jun 7, 2026, 9:00 AM PDT
- Location
- Redmond, WA
- 6046 W Lake Sammamish Parkway NE, 98052
- Type
- RUN
Sign up and verify details on the organizer’s official page.
Vibe analysis coming soon
Course feel, difficulty, and community fit are being added to this listing. Check back, and always confirm details on the official registration page.
Distances & registration
3 optionsRegistration for all distances is through the official signup link above.
- 1K
Sun, Jun 7, 8:30 AM PDT · From $18.04
Opens Feb 17, 2026, 7:01 PM PST · Closes Jun 5, 2026, 7:59 PM PDT
- 5K
Sun, Jun 7, 9:00 AM PDT · From $32.29
Opens Feb 17, 2026, 7:01 PM PST · Closes Apr 3, 2026, 7:59 PM PDT
- 10K
Sun, Jun 7, 9:00 AM PDT · From $37.77
Opens Feb 17, 2026, 7:01 PM PST · Closes Apr 3, 2026, 7:59 PM PDT
Vibe Check
Steady Effort
Steady EffortBased on terrain, weather, and distance data.
The course
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From the organizer
The Big Backyard 5K & 10K is an annual fun run and family walk celebrating the numerous King County Parks throughout our neighborhoods, cities, and county.
Founded in 2010, proceeds from the BBY 5K benefit King County Parks, support maintenance within the parks and operations of the facilities and recreational resources to keep our parks operating and open year-round!
Since the event's inception in 2010, more than 13,000 participants have gathered to raise over $80,000 for King County Parks!
Join us at 9:00am on Sunday, June 7 at King County's Marymoor Park to have fun in YOUR BIG BACKYARD!
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