As he preps for the Miami Open quarterfinals, Serbia’s Novak Djokovic stands to extend and tighten his ever-powerful grip on the ATP’s world ranking. The 28-year-old has spent 91 consecutive weeks at No. 1, starting back in July 2014, and he doesn’t figure to lose control of the coveted position any time soon while preparing for another shot at the looming French Open.

Following his victory at Indian Wells, Djokovic holds a more than 8,200-point advantage over world No. 2 Andy Murray, with rival and No. 3 Roger Federer even further back, followed by No. 4 Stan Wawrinka, and No. 5 Rafael Nadal.

Djokovic, who will face No. 7 Tomas Berdych in Miami Wednesday, owns 16,540 points compared to Murray’s 8,370, Federer’s 7,695, Wawrinka’s 6,405, and Nadal’s 4,990.

And with his four closest rivals all eliminated from Miami’s competition, Djokovic won’t lose any ground even if he falters to Berdych or later in the tournament. However, Djokovic is the defending Miami champion and he’s lining up his sixth overall title in the tournament.

Murray fell to No. 26 Grigor Dimitrov after three sets in the third round, while Federer withdrew after dealing with an illness, as did Nadal, and Wawrinka stumbled in his opening match.

The top 10 didn’t experienced any change, however, Belgium’s David Goffin rose three spots to No. 15, while Marin Cilic is testing the top 10 waters by rising one spot to No. 11 and Canada’s Milos Raonic jumped two spots to No. 12. Serbia’s Viktor Troicki also climbed two spots to No. 21.

American John Isner, South Africa’s Kevin Anderson, and Spain’s Feliciano Lopez each slipped two spots and stand as the largest decliners in the top 25.

ATP Men’s Rankings and Points

1.Novak Djokovic 16,540

2.Andy Murray 8,370

3.Roger Federer 7,695

4.Stan Wawrinka 6,405

5.Rafael Nadal 4,990

6.Kei Nishikori 4,070

7.Tomas Berdych 3,810

8.David Ferrer 3,505

9.Jo-Wilfried Tsonga 3,130

10.Richard Gasquet 2,795

11.Marin Cilic 2,725

12.Milos Raonic 2,650

13.John Isner 2,585

14.Dominic Thiem 2,510

15.David Goffin 2,290

16.Gael Monfils 2,130

17.Kevin Anderson 2,020

18.Roberto Bautista Agut 1,935

19.Gilles Simon 1,810

20.Bernard Tomic 1,670

21.Viktor Troicki 1,580

22.Benoit Paire 1,571

23.Feliciano Lopez 1,540

24.Jack Sock 1,525

25.Pablo Cuevas 1,475