Djokovic takes 12,020 points into his Madrid Masters title defence this week, with Rafael Nadal second on 9 615 and Roger Federer third on 8 520.
ATP top 10 as of May 7 (previous ranking in parenthesis):
1. (1) Novak Djokovic, Serbia, 12,020 points
2. (2) Rafael Nadal, Spain, 9,615
3. (3) Roger Federer, Switzerland, 8,520
4. (4) Andy Murray, Britain, 7,860
5. (5) Jo-Wilfried Tsonga, France, 4,885
6. (6) David Ferrer, Spain, 4,280
7. (7) Tomas Berdych, Czech Republic, 3,990
8. (8) Janko Tipsarevic, Serbia, 2,820
9. (9) Mardy Fish, United States, 2,750
10. (10) John Isner, United States, 2,725