Atlanta Fat Ass 50K

Embrace the true spirit of grassroots running at the legendary Atlanta Fat Ass, hosted by the Georgia Ultrarunning and Trailrunning Society (GUTS) on January 4, 2026. This iconic, no-frills event at Sweetwater State Park in Lithia Springs, GA, offers a 50K or 25K journey on scenic white trails, blending challenging loops with a uniquely festive, communal atmosphere. A beloved tradition since 1994, it’s the perfect post-holiday reset where the only entry fee is your GUTS membership and the promise of shared effort. Come prepared for a self-supported adventure where the real rewards are camaraderie, crockpot chili, and the simple joy of moving through the winter woods.

Join the gathering on January 4, 2026, for a day defined by low-key vibes and high personal satisfaction, starting with a collective 8:00 AM send-off from the Group Shelter. Beyond the run, fuel up and cast your vote in the celebrated FatAss Crockpot Chili Contest, a highlight where culinary bragging rights are fiercely contested. This is ultrarunning in its purest, most joyful form—a celebration of the community where every finish, whether 25K or 50K, feels like a personal victory among friends.