Registration is now open for the inaugural event, developed in partnership with the Seattle Sports Commission.
SEATTLE, Oct. 22, 2026 — RunX Seattle today announced its inaugural half marathon, taking runners through downtown Seattle on Sunday, June 13, 2027. Registration is now open at runxseattle.com.
The half marathon is the centerpiece of RunX Seattle’s new summer race weekend. Built around the belief that “No two cities run the same,” the event will pair running through downtown with opportunities to explore the many sides of Seattle’s culture. Additional weekend programming will be announced as it is confirmed.
“Every neighborhood has its own frequency, shaped by the people, the food, the art, the landscape and what happens on its streets,” said Josh Furlow, CEO of RunX. “Running lets you tune into those frequencies in a unique way. You can seek out something new or return to a favorite neighborhood and notice something you’ve never seen before. That’s the experience we’re building RunX Seattle around.”
RunX Seattle is being developed in partnership with the Seattle Sports Commission, with plans to involve local runners, run clubs, businesses and cultural organizations in experiences leading up to the event and during race weekend.
“With an experienced race production team behind it, RunX will become a flagship summer race weekend for Seattle,” said Beth Knox, president and CEO of the Seattle Sports Commission. “It’s an opportunity to establish a new annual tradition that brings residents and visitors downtown and connects them with the neighborhoods, local businesses and culture that make this city distinctive.”
The official map and additional details for the 13.1-mile downtown course will be announced separately.
RunX Seattle welcomes runners preparing for their first half marathon as well as experienced participants looking for their next challenge. Plans also include opportunities for local running communities, businesses and teams to participate together.
“We’re going to build this event with Seattle’s runners, businesses and local organizations, and keep building it together year after year,” Furlow said. “That means showing up, asking questions and listening, then bringing what we learn to race day. We want to give people an event they’re proud to have in their city and excited to run again.”
To register for RunX Seattle on Sunday, June 13, 2027, visit runxseattle.com.
About RunX
RunX creates running events built around the belief that no two cities run the same. Its events connect the race experience with the neighborhoods, culture and people that make each place distinctive. RunX Seattle’s inaugural half marathon takes place June 13, 2027.
About the Seattle Sports Commission
The Seattle Sports Commission (SSC) connects and empowers the vibrant sports community in Greater Seattle. SSC champions our region as a world-class sports destination that drives positive economic impact and creates a lasting legacy in our community. Learn more at seattlesports.org