The Otters shot just 30% (17-56) from the field and made 17% (5-29) of their shots from beyond the arc.
They were led by 11 points and 6 rebounds from Chance Fazio. Abel Aho scored 9 points, Cody Norgren added 8 points and 7 rebounds, Ethan Olson had 8 points and 4 boards, and Dominic Aguilar finished with 5 points, 5 rebounds, 5 assists and 2 steals.
The Spuds made 50% (25-50) of their shots.
Fergus Falls (4-2) will play Hutchinson in the opening round of their Holiday Basketball Classic at 7:30pm Friday, December 27 at the Kennedy Secondary School Gold Gymnasium.