DeMaio needed just 39 seconds of overtime to claim a victory for the Terps and set a date with Duke in the semifinals.
Jared Bernhardt led the way, scoring six goals for the Terps, earning a first round victory over the Catamounts.
The Terps are set to face Vermont in the first round of the tournament on May 16.
The Terps relied on five different goalscorers in the second half to earn their third Big Ten title.
Bernhardt's career-high eight goals and 10 points helped him become the Terps' all-time leading points scorer.
The Terps play Thursday against Michigan.
The first-year attacker has become a go-to option for the Terps in their 2021 campaign.
Maryland men’s lacrosse’s Jared Bernhardt and Nick Grill were both picked in the Premier Lacrosse League’s College Draft late Monday night. …
The Terps trailed in the fourth quarter for the first time all season against the Blue Jays before rallying late to win.
The Terps scored three goals in the last two minutes to complete a perfect regular season.