Not only was it Senior Day, but the No. 7 Tar Heels were looking to send a message to the NCAA selection committee, especially after a 7-6 loss to sixth-ranked Dartmouth on Friday.
Next Sunday, the committee will announce the 16 teams that will go on to postseason play.
UNC delivered under pressure with a 20-5 pummeling of Massachusetts.
"We took out our frustration today, and I think that was big deal for us," UNC goalie Melissa Coyne said. "It was good to get a definitive win, to put Dartmouth out of our system and look forward to where we're going to be seeded in the tournament."
UNC (10-6) now must wait until Sunday to find out its postseason fate. North Carolina coach Jenny Slingluff Levy said the Tar Heels are hoping for a 6, 7 or 8 seed, which would give them home-field advantage in a first-round matchup.
"The tournament is going to be really competitive. All 16 teams are going to be good," Slingluff Levy said. "There's a lot of parity in the league this year, so it should be wide open."
With the tournament still in the future, the Tar Heels were focused on Senior Day and their regular-season finale Sunday.
The win was the last regular-season game for Tar Heel seniors Amy Havrilla, Eden Rehillan, Kate McDaniel, Nicole Foran, Julia Marslender and Brooke Schildwater.
"This is a great group of seniors," Slingluff Levy said. "You can't say enough about kids who lead through hard work."