Kristi Toliver committed 14 turnovers, but atoned for her mistakes by hitting a three-pointer with 1.1 seconds remaining in the fourth quarter to lift the Los Angeles Sparks to a 76-75 win over the winless Tulsa Shock.
Toliver and DeLisha Milton-Jones both finished with 16 points for the Sparks, who squandered a 14-point lead.
Candace Parker supplied a double-double of 10 points and 10 rebounds as Los Angeles improved to 4-1 on the season.
Riquna Williams had a game-high 19 points for Tulsa, which scored 25 points off 28 Los Angeles turnovers.
The Shock have dropped each of their first four games.