LOS ANGELES -- Stefanie Dolson hit a go-ahead 3-pointer with 13 seconds left and scored 15 points to help the Chicago Sky beat Los Angeles 82-80 on Thursday for the Sparks' first home loss of the season.

After a timeout with 20.4 seconds left, Courtney Vandersloot curled around the defense, drove the baseline and found an open Dolson in the corner for a 3-pointer.

Nneka Ogwumike dribbled into a double team in the lane and her shot was blocked out-of-bounds by Imani Boyette with 4.8 seconds left. Boyette blocked another shot under the basket, and Ogwumike's putback was short at the buzzer.

Vandersloot had her fourth double-double in six games with 14 points and a career-high 14 assists for Chicago (8-13). Cappie Pondexter scored eight points to reach 6,500 for her career.

Pondexter made a jumper with 7:24 left in the fourth quarter to give Chicago its first lead, 67-65, since 9-8.

Nneka Ogwumike had 24 points and 10 rebounds for Los Angeles (14-6).