ATP Tour 500
The ATP 500 tournaments are the fourth highest tier of annual men's tennis tournament after the four Grand Slam tournaments, ATP Finals, and the ATP Tour Masters 1000.
The series includes 13 tournaments, with 500 ranking points awarded for the events' singles champions - which accounts for the name of the series. Tournaments have various draws of 32 and 48 for singles and 16 and 24 for doubles. It is mandatory for leading players to enter at least four 500 events, including at least one after the US Open; if they play fewer than four, or fail to play in one after the US Open they get a "zero" score towards their world ranking for each one short.
Roger Federer holds the record for most singles titles at 24, while Daniel Nestor holds the record for most doubles titles won with 20.
TournamentsATPTour.com. https://www.atptour.com/en/tournaments "ATP Tour calendar"
| Tournament | Country | City | Current venue | Founded | Court surface | Centre court capacity | Draw | Defending champion | Prize money | Winner prize money |
| Rotterdam Open | Rotterdam | Rotterdam Ahoy | 1972 | Hard | 15,818 | 32 |  Gaël Monfils | €2,155,295 | €406,840 | |
| Rio Open | Rio de Janeiro | Jockey Club Brasileiro | 2014 | Clay | 6,200 | 32 |  Cristian Garín | $1,915,485 | $355,530 | |
| Dubai Tennis Championships | Dubai | Aviation Club Tennis Centre | 1993 | Hard | 5,000 | 32 |  Novak Djokovic | $2,950,420 | $565,705 | |
| Mexican Open | Acapulco | Fairmont Acapulco Princess | 1993 | Hard | 6,000 | 32 |  Rafael Nadal | $2,000,845 | $372,785 | |
| Barcelona Open | Barcelona | Real Club de Tenis Barcelona | 1953 | Clay | 8,800 | 48 |  Dominic Thiem | €2,510,900 | €501,700 | |
| Queen's Club Championships | London | Queen's Club | 1890 | Grass | 8,650 | 32 | Feliciano López | €1,836,660 | €427,590 | |
| Halle Open | Halle | Gerry Weber Stadion | 1993 | Grass | 12,300 | 32 |  Roger Federer | €1,983,595 | €427,590 | |
| German Open | Hamburg | Am Rothenbaum | 1892 | Clay | 13,300 | 32 |  Nikoloz Basilashvili | €1,619,935 | €349,200 | |
| Washington Open | Washington, D.C. | William H.G. FitzGerald Tennis Center | 1969 | Hard | 7,500 | 48 |  Nick Kyrgios | $1,890,165 | $384,120 | |
| China Open | Beijing | National Tennis Center | 1993 | Hard | 15,000 | 32 | Dominic Thiem | $3,401,860 | $733,320 | |
| Japan Open | Tokyo | Ariake Coliseum | 1972 | Hard | 10,000 | 32 | Novak Djokovic | $1,781,930 | $384,120 | |
| Vienna Open | Vienna | Wiener Stadthalle | 1974 | Hard | 7,500 | 32 | Dominic Thiem | €2,198,250 | €473,865 | |
| Swiss Indoors | Basel | St. Jakobshalle | 1970 | Hard | 9,000 | 32 | Roger Federer | €1,984,420 | €427,765 |
Historic names
1990–1999ATP Championship Series
2000–2008
ATP International Series Gold
2009–2018
ATP World Tour 500
2019–present
ATP Tour 500
ATP Points
Singles champions
ATP Tour 500
ATP World Tour 500
ATP International Series Gold
ATP Championship Series
Doubles champions
ATP Tour 500
ATP World Tour 500
ATP International Series Gold
ATP Championship Series
Statistics
Most titles
Bold face designates active playersSingles
| Rank | Player | Titles |
| 1 | Roger Federer | 24 |
| 2 | Rafael Nadal | 21 |
| 3 | Novak Djokovic | 14 |
| 4 |  Pete Sampras | 12 |
| 5 | David Ferrer | 10 |
| 6 |  Boris Becker | 9 |
| 6 |  Juan Martín del Potro | 9 |
| 6 |  Andy Murray | 9 |
| 9 |  Stefan Edberg | 8 |
| 10 |  / Goran Ivanišević | 7 |
Doubles
| Rank | Player | Titles |
| 1 |  Daniel Nestor | 20 |
| 2 | Nenad Zimonjić | 17 |
| 3 | Bob Bryan | 14 |
| 3 | Mike Bryan | 14 |
| 5 |  Bruno Soares | 9 |
| 6 |  Horia Tecau | 8 |
| 7 |  Lukasz Kubot | 7 |
| 7 | Marcelo Melo | 7 |
| 7 |  Max Mirnyi | 7 |
| 7 | Jamie Murray | 7 |
| 7 |  Jean-Julien Rojer | 7 |
| 12 |  Henri Kontinen | 6 |
| 12 | Michael Llodra | 6 |
| 12 | Alexander Peya | 6 |