Nneka Ogwumike had 20 points and 11 rebounds for her first double-double of the season and the Sparks beat the Chicago Sky 79-70 on Tuesday night at Staples Center.
Alana Beard finished with 18 points and Candace Parker added 12 for the Sparks (4-2), who are unbeaten in three home games.
Courtney Vandersloot scored 13 points and Allie Quigley added 12 for Chicago (1-7).
The Sparks led throughout the first half, behind Ogwumike's 15 points, never trailing after Essence Carson opened the scoring with a three-pointer 18 seconds into the game. The lead grew to as many as nine points, 26-17, after a Parker free throw with 6:58 remaining in the first half.
But the Sky refused to fold, pulling within two points at 30-28, before the Sparks scored 11 of the final 18 points in the half to take a 41-35 lead.
Chicago tied the score, 49-49, when Allie Quigley hit a three-pointer with 4:07 remaining in the third quarter.