NEWARK, Del. -- William & Mary put a damper on Senior Day for the University of Delaware women's basketball squad Sunday afternoon as the Tribe grabbed the lead with four minutes left and held on for a 68-64 upset win over the Blue Hens at the Bob Carpenter Center.

The Blue Hens (17-8, 9-5 CAA), who honored seniors Kelsey Buchanan and Akeema Richards prior the game, suffered a rare setback to William & Mary as they lost to the Tribe (7-18, 4-9 CAA) for the first time since 2007-08 after winning nine straight.

Among those watching the game was U.S. Vice-President Joe Biden, who attended a UD women's game at the BCC for the third straight year.

Buchanan led Delaware with a game-high 24 points and pulled down 10 rebounds as she surpassed the 20-point mark for the ninth time this season and posted her eighth double-double.

The Blue Hens were hurt by a season-high 25 turnovers and 9 of 24 shooting from the field in the second half.

"It was a bad day to have a bad day," said Delaware head coach Tina Martin. "We weren't sharp and we just didn't play well today. We didn't attack the zone like we have been doing and we committed way too many turnovers and missed too many layups. It's discouraging, but we just have to get back in the gym and get ourselves straightened out for our final two games on the road."

Freshman Hannah Jardine (at right) added 13 points for the Blue Hens while Joy Caracciolo added six points and a team-high 11 rebounds and Courtni Green came off the bench to score 15 points.

William & Mary got 21 points off the bench from Marlena Tremba and 17 points from Kyla Kerstetter. Tremba surpassed the 20-point mark for the fourth time this season.

Delaware took a slim 39-36 lead at halftime and led by as many as 11 points in the second half at 56-45 with 11:41 left to play.

But the Tribe slowly got back into the game and took their first lead of the half at 59-58 on a Tremba three-pointer with 6:24 left. Two free throws from Kerstetter upped the lead to 61-58.

Delaware got a conventional three-point play from Buchanan with 4:49 left to tie the game at 61-61, but that would be the last share of the lead the Hens would enjoy.

Latrice Hunter gave William & Mary the lead for good with a layup and Kaitlyn Mathieu followed with a jumper with 2:36 left for a 65-61 Tribe lead. Delaware followed with a free throw from Green and a layup by Caracciolo with 27 seconds left but could never get closer.

William & Mary iced the win on a free throw by Hunter with 14 seconds left and on two more from the  line by Tremba with four seconds left.

Delaware will try to break a two-game losing streak when the Hens continue action Feb. 27 at Hofstra.