TULSA, Okla. -- Riquna Williams' step-back jumper put Tulsa up by two with 10.9 seconds left, and the Shock held off the Seattle Storm 93-89 on Sunday to tie the franchise record with their eighth straight victory.

The Shock also had an eight-game winning streak while based in Detroit in 2003.

Karima Christmas' 3-pointer with 44.9 seconds gave Tulsa (8-1) its first lead in nearly 5 minutes at 89-87. Skylar Diggins, who finished with 31 points, banged her knee on the play and had to leave the game.

Ramu Tokashiki tied it for the Storm (2-7), and Williams hit the go-ahead jumper with her foot on the 3-point line.

Seattle's Renee Montgomery missed a long-distance attempt with time running out. Christmas grabbed the rebound and added two free throws with less than a second remaining.

Williams and Plenette Pierson each added 19 points for Tulsa. Pierson surpassed 3,500 career points.

Tokashiki and Jewell Loyd each had 21 points for the Storm. It was a career high for Loyd.