Northwest Trail Runs hosts three trail run series: Winter Trail Series, Tuesday Night Trail to Grill, and the Half Marathon Trail Series. These series provide ongoing competition, as well as extra motivation and community.
No additional sign-up is required to participate in any of the series; simply complete any event in the series, and you will automatically be entered into the competition. Each series offers a swag prize for each person who participates in at least a specified number of events.
The Winter Trail Series celebrates Seattle and the Eastside’s local parks with trail runs that will keep your winter fitness warm. All events have a choice of at least two distances, with shorter course lengths ranging from 4-8 kilometers (2.5-5 miles), and longer course lengths ranging from 10-21 kilometers (6-13 miles). So rally your running pals and put these motivating events on your calendar!