KEY BISCAYNE, Fla. —
Williams broke the tournament record for victories by a woman. She’s 60-7; Steffi Graf went 59-6.
Andy Murray, the 2009 champion and runner-up last year, advanced to the semifinals by beating No. 9 Marin Cilic 6-4, 6-3. Murray has yet to drop a set, and his path is made easier because Rafael Nadal and Roger Federer skipped the tournament, and Novak Djokovic lost in the fourth round.