Caroline Wozniacki credited her training for next month's New York Marathon as a key factor in her victory over Maria Sharapova in a grueling three-set match in the WTA Finals on Tuesday.
Tommy Robredo advanced to the second round of the Valencia Open by beating fifth-seeded John Isner 7-6 (3), 6-3 on Tuesday.
Top-seeded Tomas Berdych beat defending champion Grigor Dimitrov 5-7, 6-4, 6-4 Sunday to win the Stockholm Open for the second time.
Andy Murray continued his recent resurgence Sunday by winning his second title in three weeks at the Erste Bank Open and boosting his chances of making the cut for the ATP finals.
Top seed and former champion Tomas Berdych beat Dustin Brown of Germany 7-5, 6-3 to reach the quarterfinals of the Stockholm Open on Thursday.
David Ferrer advanced to his 15th quarterfinal of the season after defeating Tobias Kamke of Germany 7-5, 6-1 at the Erste Bank Open on Thursday.
Top-seeded Milos Raonic of Canada was eliminated in his first match at the Kremlin Cup on Thursday, losing 6-3, 4-6, 6-3 to Lithuanian qualifier Ricardas Berankis.
Defending champion Grigor Dimitrov advanced to the quarterfinals of the Stockholm Open by defeating Russia's Teymuraz Gabashvili 7-5, 7-6 (4) on Wednesday.
Ivo Karlovic of Croatia saved three match points in the second set before beating Federico Delbonis of Argentina 6-7 (1), 7-6 (9), 7-6 (2) on Tuesday at the Erste Bank Open.
The Auburn women's tennis doubles team of Pleun Burgmans and Emily Flickinger captured their second-straight USTA/ITA Southern Regional title with a thrilling 3-6, 6-3, 1-0 (10-5) win over Alabama.
Carlos Berlocq of Argentina came back from a break down in the second set to defeat Gerald Melzer of Austria 6-3, 7-6 (2) on Monday at the Erste Bank Open.
Karolina Pliskova of the Czech Republic saved a match point before defeating Camila Giorgi of Italy 6-7 (4), 6-3, 7-6 (4) in the final of the Generali Ladies on Sunday.
Hometown favorite Peng Shuai closed in on her first WTA Tour title with a 7-6 (5), 2-6, 7-5 win over Croatia's Ajla Tomljanovic in the Tianjin Open quarterfinals on Friday.
Varvara Lepchenko and Alison Riske set up an all-American quarterfinal match at the Tianjin Open with straight-set wins on Wednesday.
Andy Murray moved into the third round of the Shanghai Masters with a 7-5, 6-2 win over Jerzy Janowicz on Wednesday.
Rafael Nadal was upset by big-hitting qualifier Martin Klizan of Slovakia 6-7 (7), 6-4, 6-3 in the quarterfinals of the China Open on Friday.