| Country | Serbia |
| Age | 35 Years (22 May, 1987) |
| Height | 6'2" (188cm) |
| Weight | 170lbs (77kg) |
| Birthplace | Belgrade, Serbia |
| Residence | Right-Handed, Two-Handed Backhand |
| Plays | Marian Vajda, Goran Ivanisevic |
| Turned Pro | 2003 |
| Coach | - |
| Career Prize Money | $154,756,726 |
| Country | Russia |
| Age | 26 Years (11 Feb, 1996) |
| Height | 6'6" (198cm) |
| Weight | 182lbs (83kg) |
| Birthplace | Moscow, Russia |
| Residence | Right-Handed, Two-Handed Backhand |
| Plays | Gilles Cervara |
| Turned Pro | 2014 |
| Coach | - |
| Career Prize Money | $23,260,986 |
| Country | Germany |
| Age | 25 Years (20 Apr, 1997) |
| Height | 6'6" (198cm) |
| Weight | 198lbs (90kg) |
| Birthplace | Hamburg, Germany |
| Residence | Right-Handed, Two-Handed Backhand |
| Plays | Alexander Zverev Sr. |
| Turned Pro | 2013 |
| Coach | - |
| Career Prize Money | $30,284,166 |
| Country | Greece |
| Age | 24 Years (12 Aug, 1998) |
| Height | 6'4" (193cm) |
| Weight | 198lbs (90kg) |
| Birthplace | Athens, Greece |
| Residence | Right-Handed, One-Handed Backhand |
| Plays | Apostolos Tsitsipas |
| Turned Pro | 2016 |
| Coach | - |
| Career Prize Money | $16,989,970 |
| Country | Spain |
| Age | 36 Years (03 Jun, 1986) |
| Height | 6'1" (185cm) |
| Weight | 187lbs (85kg) |
| Birthplace | Manacor, Mallorca, Spain |
| Residence | Left-Handed, Two-Handed Backhand |
| Plays | Carlos Moya, Francisco Roig, Marc Lopez |
| Turned Pro | 2001 |
| Coach | - |
| Career Prize Money | $127,121,385 |
| Country | Italy |
| Age | 26 Years (12 Apr, 1996) |
| Height | 6'5" (196cm) |
| Weight | 209lbs (95kg) |
| Birthplace | Rome, Italy |
| Residence | Right-Handed, Two-Handed Backhand |
| Plays | Vincenzo Santopadre, Marco Gulisano, Umberto Rianna |
| Turned Pro | 2015 |
| Coach | - |
| Career Prize Money | $9,231,274 |
| Country | Russia |
| Age | 25 Years (20 Oct, 1997) |
| Height | 6'2" (188cm) |
| Weight | 165lbs (75kg) |
| Birthplace | Moscow, Russia |
| Residence | Right-Handed, Two-Handed Backhand |
| Plays | Fernando Vicente |
| Turned Pro | 2014 |
| Coach | - |
| Career Prize Money | $10,156,712 |
| Country | Norway |
| Age | 24 Years (22 Dec, 1998) |
| Height | 6'0" (183cm) |
| Weight | 170lbs (77kg) |
| Birthplace | Oslo, Norway |
| Residence | Right-Handed, Two-Handed Backhand |
| Plays | Christian Ruud |
| Turned Pro | 2015 |
| Coach | - |
| Career Prize Money | $5,058,219 |
| Country | Canada |
| Age | Years (08 Aug, 2000) |
| Height | 6'4" (193cm) |
| Weight | 194lbs (88kg) |
| Birthplace | Montreal, Canada |
| Residence | Right-Handed, Two-Handed Backhand |
| Plays | Frederic Fontang, Toni Nadal |
| Turned Pro | 2017 |
| Coach | - |
| Career Prize Money | $6,311,071 |
| Country | Italy |
| Age | Years (16 Aug, 2001) |
| Height | 6'2" (188cm) |
| Weight | 167lbs (76kg) |
| Birthplace | San Candido, Italy |
| Residence | Right-Handed, Two-Handed Backhand |
| Plays | Riccardo Piatti, Andrea Volpini |
| Turned Pro | 2018 |
| Coach | - |
| Career Prize Money | $4,279,886 |
