| TOURNAMENTS | CHAMPIONS |
| CHENGDU OPEN | Denis Istomin def. Marcos Baghdatis 3-2(RET) |
| SHENZHEN OPEN | David Goffin def. Alexandr Dolgopolov 6-4, 6-7(5), 6-3 |
| CHINA OPEN | Rafael Nadal def. Nick Kyrgios 6-2, 6-1
Caroline Garcia def. Simona Halep 6-4, 7-6(3) |
| RAKUTEN JAPAN OPEN | David Goffin def. Adrian Mannarino 6-3, 7-5 |
| SHANGHAI ROLEX MASTERS | Roger Federer def. Rafael Nadal 6-4, 6-3 |
| HONG KONG TENNIS OPEN | Anastasia Pavlyuchenkova def. Daria Gavrilova 5-7, 6-3, 7-6(3) |
| TIANJIN OPEN | Maria Sharapova def. Aryna Sabalenka 7-5, 7-6(8) |
| UPPER AUSTRIA LADIES LINZ | Barbora Strycova def. Magdalena Rybarikova 6-4, 6-1 |
| VTB KREMLIN CUP | Julia Goerges def. Daria Kasatkina 6-1, 6-2
Damir Dzumhur def. Ricardas Berankis 6-2, 1-6, 6-4 |
| EUROPEAN OPEN | Jo-Wilfried Tsonga def. Diego Schwartzman 6-3, 7-5 |
| INTRUM STOCKHOLM OPEN | Juan Martin del Potro def. Grigor Dimitrov 6-4, 6-2 |
| LUXEMBOURG OPEN | Carina Witthoeft def. Monica Puig 6-3, 7-5
FIRST CAREER TITLE |
| WTA FINALS | Caroline Wozniacki def. Venus Williams 6-4, 6-4 |
| ERSTE BANK OPEN | Lucas Pouille def. Jo-Wilfried Tsonga 6-1, 6-4 |
| SWISS INDOORS BASEL | Roger Federer def. Juan Martin del Potro 6-7(5), 6-4, 6-3 |
| ROLEX PARIS MASTERS | Jack Sock def. Filip Krajinovic 5-7, 6-4, 6-1 |
| ATP FINALS | Grigor Dimitrov def. David Goffin 7-5, 4-6, 6-3 |
| MILAN NEXTGEN FINALS | Hyeon Chung def. Andrey Rublev 3-4(5), 4-3(2), 4-2, 4-2
FIRST CAREER TITLE |
| DAVIS CUP FINAL | France def. Belgium 3:2 |
Fourth Quarter ATP & WTA Champions
