Massachusetts Ultramarathons
11 upcoming ultras across Massachusetts, updated nightly. Want radius search and maps? Open these in the Race Finder.
When to race: ultras in Massachusetts
Massachusetts has 11 upcoming ultras over the next 12 months. Among complete calendar months, April 2027 has the most listed races, with 2. Most are around Hingham, Windsor, Springfield. The next one is Seth's Fat Ass 50K on December 12 in Springfield.
- Dec 20261 race
- Apr 20272 races
- May 20272 races
- Jun 20271 race
- Jul 20271 race
- Aug 20272 races
- Oct 20272 races
December 2026
- Sat 12/12Seth's Fat Ass 50KSpringfield, MA · 50K · register ↗
April 2027
- Sat 4/17Spring Fever 5K | 5 Mile | 8HRHingham, MA · 8 Hour · Timed · 4 Miles · register ↗
- Fri 4/23RUCK4HIT 2027Falmouth, MA · 200 Miles · 100 Mile · from $150 · register ↗
May 2027
- Sat 5/1Jug End Loop UltraEgremont, MA · 5K · 6 Hour · register ↗
- Sun 5/30Vest Up 4 the FallenBoston, MA · 65 Miles · from $65 · register ↗
June 2027
- Fri 6/4Connecticut Ultra Traverse #CUT112Southwick, MA · Ultra · register ↗
July 2027
- Fri 7/9Notchview UltraWindsor, MA · 100 Mile · 72 Hour · register ↗
August 2027
- Sat 8/14Sweltering Summer UltraPittsfield, MA · 8 Hour · register ↗
- Sat 8/28UltraTrax WachusettWestminster, MA · 7 Miles · 14 Miles · 21 Miles · 28 Miles · from $58 · register ↗
October 2027
- Sat 10/9NotchtoberfestWindsor, MA · 24 Hour · register ↗
- Sat 10/23Womp RompHingham, MA · 50K · 10 Mile · register ↗
Planning a race
- The adventure listrim to rim, the big rounds, and routes worth planning a year around
- Getting inhow entry works for the races that sell out or ballot
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