The 31-year-old Italian reached a career-high ranking of 12th after claiming his maiden Masters trophy with a straight-sets win over unheralded Serbian Dusan Lajovic in Sunday’s final.
Fognini jumped six spots to close on the top 10, while Lajovic climbed 24 places to 24th.
ATP top 20:
1. Novak Djokovic (SRB) 11,160 pts
2. Rafael Nadal (ESP) 8,085
3. Alexander Zverev (GER) 5,770
4. Roger Federer (SUI) 5,590
5. Dominic Thiem (AUT) 4,675
6. Kevin Anderson (RSA) 4,115 (+1)
7. Kei Nishikori (JPN) 3,690 (-1)
8. Stefanos Tsitsipas (GRE) 3,240
9. Juan Martin del Potro (ARG) 3,225
10. John Isner (USA) 3,085
11. Marin Cilic (CRO) 2,845
12. Fabio Fognini (ITA) 2,840 (+6)
13. Karen Khachanov (RUS) 2,730 (-1)
14. Daniil Medvedev (RUS) 2,505
15. Borna Coric (CRO) 2,480 (-2)
16. Milos Raonic (CAN) 2,050 (-1)
17. Marco Cecchinato (ITA) 2,041 (-1)
18. Nikoloz Basilashvili (GEO) 1,930 (-1)
19. Gael Monfils (FRA) 1,875
20. Denis Shapovalov (CAN) 1,820