About Us

Mountain Biking in the Pacific Northwest

We started doing endurance races years ago, and over time transitioned into organizing endurance events as well, from adventure races, duathlons, trail runs to mountain bike races. In 2010 we had a very successful first endurance mountain bike event, the Capitol Forest 50/100 Miler. The idea was born to promote more endurance events in Washington. The point series now includes four races per year, starting with the Stottlemeyer 30/60 Miler, followed by Echo Valley 30/60 Miler, Capitol Forest 50/100 Miler, and finishing with the Suntop 30/50 Miler.

Our goal is to provide you with the best courses and most amazing support to give you a bike race experience you will not forget!

4th Dimension Racing