helterskelter
G.O.A.T.
I've done this for the last few Slams. Here it is this time:
21: Hyeon Chung, Karen Khachanov
22: Kyle Edmund
23: Jiri Vesely, Dominic Thiem, Lucas Pouille
24: Diego Schwartzman
25: Pablo Carreno Busta, Nikoloz Basilashvili
26: Milos Raonic, Grigor Dimitrov, David Goffin
27: Kei Nishikori, Steve Johnson
28: Juan Martin Del Potro, Marin Cilic
29: Albert Ramos-Vinolas, Roberto Bautista Agut
30: Andy Murray, Fabio Fognini, Richard Gasquet [turns 31 in June], Gael Monfils, Rafael Nadal [turns 31 on Saturday], Novak Djokovic
31: Pablo Cuevas, Kevin Anderson
32: Horacio Zeballos, Stan Wawrinka, John Isner
33: Fernando Verdasco, Guillermo Garcia Lopez [turns 34 on Sunday]
35: Feliciano Lopez
By age category:
Teenagers: 0
20-24: 7
25-29: 11
30-34: 13
35+: 1
21: Hyeon Chung, Karen Khachanov
22: Kyle Edmund
23: Jiri Vesely, Dominic Thiem, Lucas Pouille
24: Diego Schwartzman
25: Pablo Carreno Busta, Nikoloz Basilashvili
26: Milos Raonic, Grigor Dimitrov, David Goffin
27: Kei Nishikori, Steve Johnson
28: Juan Martin Del Potro, Marin Cilic
29: Albert Ramos-Vinolas, Roberto Bautista Agut
30: Andy Murray, Fabio Fognini, Richard Gasquet [turns 31 in June], Gael Monfils, Rafael Nadal [turns 31 on Saturday], Novak Djokovic
31: Pablo Cuevas, Kevin Anderson
32: Horacio Zeballos, Stan Wawrinka, John Isner
33: Fernando Verdasco, Guillermo Garcia Lopez [turns 34 on Sunday]
35: Feliciano Lopez
By age category:
Teenagers: 0
20-24: 7
25-29: 11
30-34: 13
35+: 1