Kei Nishikori started his maiden campaign at the ATP Finals with a 6-4, 6-4 win over home favorite Andy Murray on Sunday.
LSU sophomore Joana Vale Costa secured her first tournament title as a Tiger on Sunday, winning the 2014 Jack Kramer Invitational.
Carla Suarez Navarro advanced to the semifinals of the season-ending Tournament of Champions by beating Tsvetana Pironkova 7-6 (2), 6-1 on Friday.
Milos Raonic secured his maiden win over Roger Federer to book his place in the semifinals of the Paris Masters on Friday.
Andy Murray saved five match points in a thrilling fightback to beat Tommy Robredo 3-6, 7-6 (7), 7-6 (8) in a grueling Valencia Open final on Sunday.
Top-seeded Roger Federer beat big-serving Ivo Karlovic 7-6 (8), 3-6, 6-3 Saturday to reach a ninth consecutive Swiss Indoors final and his 11th overall in his hometown of Basel.
Fourth-seeded Milos Raonic hit 12 aces and saved all five break points he faced as he beat Steve Johnson of the United States 7-6 (4), 6-4 in the first round of the Swiss Indoors on Tuesday.
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.
Top-seeded Tomas Berdych of the Czech Republic will play defending champion Grigor Dimitrov in the final of the Stockholm Open.
David Ferrer came from a break down in the final set to defeat Philipp Kohlschreiber of Germany 6-3, 2-6, 7-6 (3) on Saturday and set up a final against Andy Murray at the Erste Bank Open.
David Ferrer and Andy Murray advanced to the semifinals of the Erste Bank Open on Friday, boosting their chances to qualify for the ATP Finals next month.
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.
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.