Washington trailed 76-56 with three minutes left in the third quarter. But the Mystics went on a 12-0 run in the fourth to tie it at 86-all with 3:38 remaining. AdvertisementAdvertisement AdvertisementMcMahon completed a three-point play with three minutes left to give Washington its first lead of the game at 89-88. Washington had a foul overturned with 33.2 seconds left and McMahon scored at the other end for a 95-90 advantage. Jessica Shepard had 22 points and 11 rebounds for her 20th double-double of the season, and Alanna Smith added 21 points and 11 boards for Dallas (19-12).