Embrace the gritty, low-key spirit of ultra-running at the Capitol Peak Mega Fat Ass, an annual January tradition in the scenic Capitol State Forest. Scheduled for January 17, 2026, in Olympia, WA, this event offers challenging 50K and 26K distances that promise a true test of winter trail running prowess. The course, featuring a hilly and often muddy dirt path with approximately 95% un-paved trails, provides runners with spectacular views of the mountains and Puget Sound as they ascend towards Capitol Peak. The 26K consists of a single loop, while 50K participants will tackle the demanding 17-mile loop twice, accumulating roughly 4,000 feet of elevation gain for the longer distance and 2,000 feet for the shorter. The trails are well-marked with flagging and spray paint arrows to guide your journey through moss-covered trees and past gorgeous waterfalls.

True to its "Fat Ass" designation, this event, produced by Oly Trail Runners, emphasizes self-sufficiency and camaraderie over extensive race frills. While there are water-only aid stations at Falls Creek and Capitol Peak, supported by the Thurston County Jeep Patrol for communications and first aid, runners should plan to carry their own nutrition. Drop bags are permitted at aid stations to help keep you supplied. Typical race day conditions in mid-January can involve highs around 46F and lows near 33F, with a 30% chance of precipitation, meaning participants should be prepared for cold, wet, and potentially muddy conditions, including navigating "endless puddles" and even patches of snow.

Beyond the personal challenge, the Capitol Peak Mega Fat Ass is a community-focused event that serves as a fundraiser for the Friends of Capitol Forest, who maintain these cherished trails, and South Sound Mobile Search and Rescue. The race culminates in a welcoming post-race potluck, offering hot chicken noodle or butternut squash soup around a fire, encouraging runners to share their experiences and connect. Runners should note that a Discover Pass is required for parking at the start/finish at Margaret McKenny Campground, and a signed DNR waiver is mandatory for check-in. Limited overnight camping is available the night before for those wishing to stay close to the action.