Becky Hammon scored 13 of her 19 points in the first half to lead the San Antonio Silver Stars past Phoenix 89-47 on Sunday, extending their franchise-best winning streak to 11 games and handing the Mercury their worst loss.
Hammon, a member of the Russian Olympic team that lost in the bronze-medal game to Australia, made two 3-pointers in the first half as the Silver Stars built a 19-point lead by the break.
Alexis Hornbuckle had 11 points and seven rebounds for the Mercury, who have lost eight straight, dating back to July 1.
The 42-point margin surpassed an 89-48 loss to Seattle on July 19, 2002.
It was also the most lopsided game of the season for both teams as San Antonio hadn't won by more than 21 and Phoenix's worst loss a 22-point defeat to Minnesota in the season opener.