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 24 April 2023^[update]^[5]
No.	Player	Points	Move
1	Novak Djokovic (SRB)	7,135
2	Carlos Alcaraz (ESP)	6,770
3	Daniil Medvedev (RUS)	5,240	1
4	Casper Ruud (NOR)	5,210	1
5	Stefanos Tsitsipas (GRE)	5,195
6	Andrey Rublev (RUS)	4,280
7	Holger Rune (DEN)	4,070
8	Jannik Sinner (ITA)	3,615
9	Félix Auger-Aliassime (CAN)	3,405
10	Taylor Fritz (USA)	3,290
11	Frances Tiafoe (USA)	2,870	1
12	Karen Khachanov (RUS)	2,855	1
13	Cameron Norrie (GBR)	2,725
14	Rafael Nadal (ESP)	2,715
15	Hubert Hurkacz (POL)	2,660
16	Alexander Zverev (GER)	2,140
17	Tommy Paul (USA)	2,070	1
18	Lorenzo Musetti (ITA)	2,065	2
19	Alex de Minaur (AUS)	1,955
20	Borna Coric (CRO)	1,890	1

ATP rankings (doubles) as of 24 April 2023^[update]^[6]
No.	Player	Points	Move
1T	Wesley Koolhof (NED)	7,280
1T	Neal Skupski (GBR)	7,280
3	Austin Krajicek (USA)	5,950
4	Rajeev Ram (USA)	5,702
5	Joe Salisbury (GBR)	5,612	1
6	Ivan Dodig (CRO)	5,530	1
7	Mate Pavić (CRO)	5,170
8T	Marcelo Arévalo (ESA)	4,975
8T	Jean-Julien Rojer (NED)	4,975
10	Nikola Mektić (CRO)	4,920
11T	Lloyd Glasspool (GBR)	4,540
11T	Harri Heliövaara (FIN)	4,540
13	Rohan Bopanna (IND)	3,960
14	Michael Venus (NZL)	3,470	4
15	Édouard Roger-Vasselin (FRA)	3,365	1
16	Kevin Krawietz (GER)	3,280	2
17	Jan Zieliński (POL)	3,235
18	Horacio Zeballos (ARG)	3,110	2
19	Fabrice Martin (FRA)	3,110	2
20	Santiago González (MEX)	3,095	1