When is Big Backyard 5K/10K?

Big Backyard 5K/10K takes place on Jun 7, 2026. That's in 1 week.

Where is Big Backyard 5K/10K located?

Big Backyard 5K/10K is held in Redmond, Washington, United States.

What distances are available at Big Backyard 5K/10K?

Big Backyard 5K/10K offers the following distances: 10K, 5K, 1K.

How do I register for Big Backyard 5K/10K?

You can register for Big Backyard 5K/10K through the official registration page.

What is the typical weather for Big Backyard 5K/10K?

Based on historical data, you can expect temperatures between 52°F and 69°F on race day. There's approximately a 8% chance of precipitation.

Big Backyard 5K/10K (1K-10K) - Jun 7, 2026 | Redmond, WA

Lace up for the Big Backyard 5K/10K on June 7, 2026, a beloved annual event held in the scenic Marymoor Park in Redmond, WA. This race offers a fantastic opportunity for runners and walkers of all ages and abilities to enjoy a day of fitness and community, with distances available for a 10K, 5K, and a 1K Kids Run. The course is celebrated for its largely flat and fast profile, guiding participants along the picturesque Marymoor Connector Trail and portions of the Sammamish River Trail, providing a car-free experience (though cyclists may be present). Runners will appreciate the scenic routes within King County Parks, making for an enjoyable outing.

Starting and finishing at the Marymoor Park Recreation and Event Area near the Velodrome and Climbing Wall, the Big Backyard 5K/10K is known for its welcoming atmosphere, allowing strollers and even leashed dogs to join the fun. Typical race day conditions in early June in Redmond offer comfortable temperatures, with historical highs around 69°F and lows around 52°F, and only an 8% chance of precipitation, creating ideal running weather. Aid stations providing water will be available on the course, with one shared by both the 5K and 10K at the 2-mile mark, and an additional station for 10K participants at mile 4.

Beyond the race itself, the Big Backyard 5K/10K holds a strong reputation, having been founded in 2010 to benefit King County Parks. Proceeds from the event support the ongoing maintenance and operations of these vital green spaces, with over $80,000 raised since its inception, contributing to the community's enjoyment of local parks. Participants also receive a short-sleeve shirt, a stainless steel finisher pint glass, and a custom race bib with a timing chip. This event is a perfect blend of competitive spirit and community support, offering a memorable experience for everyone.