Freshman midfielder Charlotte Hyland converted the deciding penalty kick in the sixth round for William & Mary, which rallied from a 2-1 deficit in the closing minutes of regulation to force extra time.
Redshirt freshman forward Sarah Segan gave William & Mary a 1-0 lead in the 18th minute when she scored on a breakaway for her team-leading 10th goal of the season.
But, UNCW answered with two goals to take a 2-1 advantage early in the second half. After freshman midfielder Brittany Matsinger evened the score in the 29th minute with the first goal of her college career, she found senior midfielder Callie McClainon a through pass, which McClain converted in the 50th minute for the go-ahead goal.
With 7:49 remaining in regulation, the Tribe used another breakaway to even the score as junior defenderElysse Branton tallied her first goal of the season.
Senior goalkeeper Carolyn Huddy recorded five saves for UNCW while redshirt junior goalkeeper Grace Smith tallied two saves for the Tribe.
#SeahawkStats: Sunday's game marked the first-ever tie in the 26-game series between William & Mary and UNCW … The Tribe leads the series by a 23-2-1 margin, but UNCW is now 1-0-1 in the last two encounters … UNCW improved to 6-13-4 all-time in the CAA Tournament, but lost its first penalty kick shootout in four occasions … The Seahawks finish the season with a 1-1-4 record in overtime games … UNCW scored two or more goals for the 11th time in 19 games this year, finishing with a 9-0-2 mark in those games … Matsinger became the 14th different UNCW player to score a goal this season … The Seahawks finish the season with 107 points, which is the sixth-best total in school history … UNCW recorded 30 or more assists for the sixth time in program history after ending the year with 31 assists … The Seahawks were outshot for just the fourth time in 19 games this season.