ROSEMONT, Ill. -- Elena Delle Donne scored 22 points, including the winning runner with 19 seconds to play, and tied her career high with four 3-pointers to lead the Chicago Sky past the Washington Mystics, 69-68 on Sunday night.

Cappie Pondexter and Jessica Breland scored 12 points apiece, and Courtney Vandersloot had 10 assists for Chicago. The Sky (12-8) have won seven of their last 10 games after starting the season 5-5.

A layup by LaToya Sanders and a jumper by Stefanie Dolson gave Washington (11-7) a 68-67 lead with 28 seconds remaining, but Delle Donne answered with a driving scoop shot in the lane to put the Sky ahead 9 seconds later.

Ivory Latta, who led the Mystics with 19 points, missed a short jumper with 3 seconds left. Breland then hit two free throws to seal it.

Washington's Natasha Cloud had a career-high eight assists.