ATP Tour

The ATP Tour (since January 2009 until December 2018 known as ATP World Tour) is a worldwide top-tier tennis tour for men organized by the Association of Tennis Professionals. The second-tier tour is the ATP Challenger Tour and the third-tier is the ITF Men's World Tennis Tour. The equivalent women's organisation is the WTA Tour.

ATP Tour tournaments

The ATP Tour comprises ATP Masters 1000, ATP 500, and ATP 250 and the ATP Cup.^[1] The ATP also oversees the ATP Challenger Tour,^[2] a level below the ATP Tour, and the ATP Champions Tour for seniors. The Grand Slam tournaments, the Olympic tennis tournament, the Davis Cup, and the entry-level ITF World Tennis Tour do not fall under the purview of the ATP, but are overseen by the International Tennis Federation (ITF) instead and the International Olympic Committee (IOC) for the Olympics. In these events, however, ATP ranking points are awarded, with the exception of the Olympics. Players and doubles teams with the most ranking points (collected during the calendar year) play in the season-ending ATP Finals, which, from 2000–2008, was run jointly with the ITF. The details of the professional tennis tour are:

Category	Tournaments	Winner's ranking points	Average prize money^[3]	Governing body
Grand Slam	4	2,000	US$24,266,872	ITF
ATP Finals	1	1,100–1,500	US$7,250,000	ATP
ATP Masters 1000	9	1000	US$5,007,832	ATP
ATP 500	13	500	US$1,803,832	ATP
ATP 250	39	250	US$615,151	ATP

ATP Cup	1	750 (max)	US$15,000,000 (2020)	ATP
Davis Cup	1	0	US$15,300,000 (2021)	ITF
Olympics	1	0	0	IOC/ITF

ATP Challenger Tour	178	50 to 175	$64,901	ATP
ITF Men's Circuit	534	18 to 35	$17,798	ITF

ATP publishes weekly rankings of professional players.^[4]

ATP rankings (singles) as of 10 April 2023^[update]^[5]
No.	Player	Points	Move
1	Novak Djokovic (SRB)	7,160
2	Carlos Alcaraz (ESP)	6,780
3	Stefanos Tsitsipas (GRE)	5,770
4	Casper Ruud (NOR)	5,255	1
5	Daniil Medvedev (RUS)	5,150	1
6	Andrey Rublev (RUS)	3,470
7	Félix Auger-Aliassime (CAN)	3,450
8	Jannik Sinner (ITA)	3,345	1
9	Holger Rune (DEN)	3,335	1
10	Taylor Fritz (USA)	3,065
11	Frances Tiafoe (USA)	2,870	4
12	Karen Khachanov (RUS)	2,855	1
13	Hubert Hurkacz (POL)	2,750	1
14	Cameron Norrie (GBR)	2,735	1
15	Rafael Nadal (ESP)	2,715	1
16	Alexander Zverev (GER)	2,410
17	Pablo Carreño Busta (ESP)	2,185
18	Tommy Paul (USA)	2,070
19	Alex de Minaur (AUS)	2,050
20	Borna Ćorić (CRO)	1,890

ATP rankings (doubles) as of 10 April 2023^[update]^[6]
No.	Player	Points	Move
1T	Wesley Koolhof (NED)	7,100
1T	Neal Skupski (GBR)	7,100
3	Rajeev Ram (USA)	6,612
4	Joe Salisbury (GBR)	6,522
5	Mate Pavić (CRO)	5,410
6T	Marcelo Arévalo (ESA)	5,290
6T	Jean-Julien Rojer (NED)	5,290
8	Nikola Mektić (CRO)	5,205
9	Austin Krajicek (USA)	5,040
10	Ivan Dodig (CRO)	4,530
11T	Lloyd Glasspool (GBR)	4,360
11T	Harri Heliövaara (FIN)	4,360
13	Rohan Bopanna (IND)	4,140
14	Michael Venus (NZL)	3,400	1
15	Édouard Roger-Vasselin (FRA)	3,320	1
16	Kevin Krawietz (GER)	3,315	1
17	Jan Zieliński (POL)	3,305	3
18	Horacio Zeballos (ARG)	3,290
19	Santiago González (MEX)	3,230
20	Marcel Granollers (ESP)	3,110