CHARLESTON, S.C. -- Omar Prewitt scored 20 points with 13 rebounds, Daniel Dixon scored 20, and the pair came up big down the stretch as William & Mary beat Elon 71-66 Saturday in the quarterfinals of the Colonial Athletic Association Tournament.

William & Mary (16-13) will play top-seeded UNC-Wilmington in the semifinals Saturday. The Seahawks held off a late Delaware charge and advanced with a 91-82 win Saturday.

Greg Malinowski gave William & Mary a 62-60 lead with his 3-pointer with 1:50 to play. Tyler Seibring tied it with a pair of free throws before Dixon gave the Tribe the lead for good.

Elon's Dmitri Thompson made one of two free throws, and Prewitt's 3 sealed it with 33 seconds to go. Dixon made all four of his foul shots in the last 19 seconds. Paul Rowley added 11 points for the Tribe.

Brian Dawkins led Elon (18-14) with 19 points and nine rebounds, Seibring scored 14, and Dainan Swoope 10.