Italy's Jannik Sinner moved up to a career-high ATP ranking of sixth on Monday after capturing his first Masters trophy in Toronto.
Sinner, 21, won the Toronto title 6-4, 6-1 in the final against Australian Alex de Minaur, who moves up six places to 12th.
Spain's Carlos Alcaraz, 20, the reigning Wimbledon and US Open champion, holds the No 1 ranking ahead of Serb Novak Djokovic and Russian Daniil Medvedev.
Denmark's Holger Rune moves up to fifth with Norway's Casper Ruud slipping two places to seventh.
1. Carlos Alcaraz (ESP) 9395 pts
2. Novak Djokovic (SRB) 8795
3. Daniil Medvedev (RUS) 6530
4. Stefanos Tsitsipas (GRE) 5090
5. Holger Rune (DEN) 4790 (+1)
6. Jannik Sinner (ITA) 4725 (+2)
7. Casper Ruud (NOR) 4715 (-2)
8. Andrey Rublev (RUS) 4595 (-1)
9. Taylor Fritz (USA) 3605
10. Frances Tiafoe (USA) 3050
11. Karen Khachanov (RUS) 2855
12. Alex De Minaur (AUS) 2595 (+6)
13. Tommy Paul (USA) 2525 (+1)
14. Félix Auger-Aliassime CAN) 2510 (-2)
15. Cameron Norrie (GBR) 2425 (-2)
16. Borna Coric (CRO) 2315 (-1)
17. Alexander Zverev (GER) 2310 (-1)
18. Lorenzo Musetti (ITA) 1995 (+1)
19. Grigor Dimitrov (BUL) 1690 (+1)
20. Hubert Hurkacz (POL) 1685 (-3)