Loading view. Running Races in Douglas, MA Find runs and races near you with our Douglas, MA running calendar. Find your next 5K, 10K, half marathon, road race, trail run, marathon, ultra, and everything in between. Today 10/7/2023 Sat, October 7, 2023 - 5/2/2024 Now Select date. October 2023 Midstate Massive Ultra Trail In-Person RaceSat, October 7, 2023 Douglas, MA Ultra Previous Events Today Next Events