The 2023 Massachusetts ultrarunning season officially opened on Saturday, Jan. 7, when Gil’s Athletic Club played host to the 23rd running of the G.A.C. Fat Ass 50K at Bradley Palmer State Park in Topsfield, Mass. Around 200 runners took part in the free, laid-back event, completing anywhere between one and five loops of the approximately 6.2-mile loop course. The following are a sample of the photos taken by MassUltra Editor Chris Wristen, who also ran two loops of the course. A larger gallery can be viewed on the MassUltra Facebook page here. Additionally, a much larger photo gallery courtesy of Patrick Caron can be viewed here.