Trail · 50K
Seth's Fat Ass 50K
Springfield, MA
Seth's Fat Ass 50K is a trail race of 31.1 miles (50 km) in Springfield, Massachusetts. The next edition is on Saturday, December 12, 2026.
There are 2 other upcoming 50K races in Massachusetts.
31.1miDistance
41°Flow 25°FTypical race day
Questions about Seth's Fat Ass 50K
When is Seth's Fat Ass 50K 2026?
Seth's Fat Ass 50K 2026 is on Saturday, December 12, 2026.
Where is Seth's Fat Ass 50K?
Seth's Fat Ass 50K is held in Springfield, Massachusetts.
How long is Seth's Fat Ass 50K?
Seth's Fat Ass 50K is 31.1 miles (50 km).
What is the weather usually like at Seth's Fat Ass 50K?
Around Seth's Fat Ass 50K's date, the day's high is typically about 41°F (5°C) and the low about 25°F (-4°C), averaged over recent years.
What other 50K races are there in Massachusetts?
Other upcoming 50K races in Massachusetts are Free to Run Trail Races (September 2027, date TBD) and Womp Romp (October 23, 2027).
Other races in Massachusetts
- Feaster Five Road Race 5K · Nov 26, 2026
- Hot Chocolate Run for Safe Passage 5K · Dec 6, 2026
- Winter Classic 5K (Cambridge) 5K · Dec 6, 2026
- Free to Run Trail Races 50K · Sep 2027, TBD
- Womp Romp 50K · Oct 23, 2027
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