When is Lake Union 10K?

Lake Union 10K takes place on Aug 9, 2026. That's in 2 months.

Where is Lake Union 10K located?

Lake Union 10K is held in Seattle, Washington, United States.

What distances are available at Lake Union 10K?

Lake Union 10K offers the following distances: 10K.

How do I register for Lake Union 10K?

You can register for Lake Union 10K through the official registration page.

What is the typical weather for Lake Union 10K?

Based on historical data, you can expect temperatures between 59°F and 79°F on race day. There's approximately a 3% chance of precipitation.

Lake Union 10K (10K) - Aug 9, 2026 | Seattle, WA

Experience the vibrant heart of Seattle with the Lake Union 10K, set to take place on Sunday, August 9, 2026. This popular 10K race invites runners and walkers to circumnavigate the picturesque Lake Union on the scenic Cheshiahud Lake Union Loop Trail, starting and finishing at Lake Union Park near MOHAI. The course offers continuous visual delight with breathtaking views of the Seattle skyline, the Olympic Mountains, and Mount Rainier, weaving through diverse urban and natural landscapes, including parts of the Burke-Gilman Trail. While largely flat, runners should be prepared for gradual inclines over the Fremont and University Bridges, and notably, a short but steep set of two hills around mile 4.5 that require a strategic approach.

The Lake Union 10K is renowned for its well-organized atmosphere, attracting over 2,100 participants annually and standing as the second-largest race in Seattle. Aid stations, typically found around miles 2 and 4, provide water and Nuun to keep you hydrated, with an encouragement to bring your own cup to reduce waste. Beyond the stunning scenery and smooth logistics, this event distinguishes itself with a fantastic post-race breakfast featuring French toast and a toppings bar from Portage Bay Café – a beloved tradition. Typical race day conditions in early August are pleasant, with average highs around 79°F and lows around 59°F, and only a 2% chance of precipitation, providing ideal weather for a strong performance.

Embrace the lively community spirit of this race, which proudly benefits KEXP, a Seattle-based non-profit music organization. Finishers will be rewarded with a commemorative medal, with optional race t-shirts available. Whether you're aiming for a personal best on this unique course or simply seeking a memorable run with incredible views and an unparalleled post-race celebration, the Lake Union 10K promises an unforgettable Seattle running experience.