Registration for the Summit Trail Running Series gets you into all 6 of our races around Summit County on a variety of amazing trails during the most beautiful time of the year here. From Dillon, to B&B, to newly added Arapahoe Basin, get ready for some fun trails with stunning mountain views. The trail running races are every other Wednesday around 5:30 PM. More specific start times and distances for long course and short course will be posted for individual races. The series race dates are 5/17, 5/31, 6/14, 7/12, 8/2, and 8/23. Check out racebreck.com for more information on the series and individual races!