The Red Foxes battled back to tie the game and netted the overtime winner to top the Catamounts at Virtue Field on Sunday.
Junior attack Samantha Mehalick scored two minutes into the extra frame to lift Marist over UVM for a 15-14 final.
Vermont senior attack Jenna Janes led her squad with four goals and one assist.
The Cats fell to 2-1 after the defeat, and Marist picked up its first win of the season and jumped to 1-2.
Next up, UVM hosts Sacred Heart for an afternoon matchup on March 2.