Candace Parker scored 15 and the Sparks used their defense to win their fifth straight, 74-55 over the Indiana Fever on Tuesday night.
The Fever's offensive output was a season low in scoring as well as a season best defensively for the Sparks (9-2).
The Sparks pulled away with 12 straight points to lead 70-53 on Chelsea Gray's basket with 1:31 left in the game. Gray added 14 points and Nneka Ogwumike scored 12.
The Sparks remained alone atop the WNBA standings.
Natalie Achonwa had 13 points and Tiffany Mitchell scored 10 for the Fever (1-11), who were coming in off their first win of the season.