Carkeek 12 Hour 2027
Pacing, fueling and crew sheet for the course you pick
Start line in
At a glance
Carkeek 12 Hour 2027 is expected on Saturday 23 October 2027 in Seattle (Washington, United States), date to be confirmed by the organiser. One distance: 3.1 km.
Longest course: 12HR, 3.1 km with 133 m D+ (43 m per km: mountain terrain).
On Kliva, plan your pacing and nutrition for free, then send the plan to your watch.
A 12-hour or 6-hour timed loop race on a 1.93-mile course in Carkeek Park, Seattle, featuring 436 feet of elevation gain per loop and a festive Halloween atmosphere.
2 courses
GPX trace not yet published.
Where to stay
Find a place to stay near Seattle for the race.
We may earn a commission if you book through this map, at no extra cost to you.
Spotted wrong info on this page? Tell us and we'll review it. Report it