Big Backyard 5K
Sun June 5 @ 8:00 am - 1:00 pm$30 – $45
The Big Backyard 5K is a community run/walk showcasing King County Parks regional trails. Proceeds from the BBY5K benefit King County Parks in support of maintenance and operation of facilities and recreational resources. With your help over the years, we have raised more than $75,000 for King County Parks!
The 2022 Big Backyard 5K encourages all runners and walkers to enjoy their Big Backyard and gather with us at Marymoor Park on June 5th for fun and competition. Can’t make it on June 5? You can still join us virtually to support King County Parks!
The Big Backyard 5K always has great swag. This year is no different with another comfortable, super soft short-sleeve T-shirt, the famous BBY5K Harborstone Hoodie (always a great deal), and BBY5K Dog Bandanas for your four-legged running buddy.