Carkeek 6 & 12 Hour

Carkeek 6 & 12 Hour is a timed trail event held in Seattle, Washington, on October 24, 2026. Two formats are offered: a 12-hour race starting at 7:00 AM and a 6-hour race starting at 9:00 AM. The name refers to Carkeek Park, and the organizer's website points to Endless Trails. In a timed race, your result is the distance you cover before the clock runs out, which makes the format flexible for runners of all levels.

You can treat the 6-hour as a long supported training run, a first ultra, or an all-out attempt to cover as much ground as possible. The 12-hour is the more serious commitment, and it rewards steady pacing, disciplined eating, and the willingness to walk climbs early so you can still run late. Training for a loop-based timed race is straightforward: build your weekly long run, then add one back-to-back weekend a month out. Bring a change of shoes and socks, since Pacific Northwest trails in late October are often wet.