Kosice • ATP CH 50 R2 Erhard M 76⁴ 41 ab 27 May R1 Sakamoto P Q 63 62 26 May Cervia • ATP CH 50 R2 Alcala Gurri M 62 61 20 May R1 Forti F Q 26 76³ 64 19 May Zagreb • ATP CH 75 R1 Rodesch C 6 57 64 62 13 May Savannah • ATP CH 75 R2 Galan D 63 46 63 24 April R1 Gomez F 4 60 20 ab 22 April Tallahassee • ATP CH 75 R1 Glinka D 4 62 76³ 14 April Sarasota • ATP CH 75 F WuYibing 1 61 46 63 12 April SF Andrade A 63 64 11 April QF Basavareddy N 8 57 62 10 April R2 Rybakov A 62 46 64 9 April R1 Purtseladze S 62 63 6 April Houston • ATP 250 Q1 Andrade A 8 61 63 28 March Heraklion • M 25 F Gadamauri B 6 63 36 106 24 March SF Searle H Q 36 64 108 23 March QF Iannaccone F 61 16 63 23 March R2 Ovcharenko O 63 67² 61 19 March R1 Tabacco F Q 62 75 18 March Hersonissos • ATP CH 50 SF Samuel T 2 62 75 14 March QF Coppejans K 4 63 64 13 March R2 Geerts M 63 62 11 March R1 Bernet H JR 63 64 9 March Hersonissos • ATP CH 50 R2 Wendelken H 46 63 64 4 March R1 Jones M 63 62 3 March Q2 Maxted L 10 75 36 76³ 2 March Q1 Tsitsipas P Alt 75 61 1 March Baton Rouge • ATP CH 50 F Galarneau A 1 64 61 15 February SF Andrade A 2 46 62 75 14 February QF Pieczkowski O 76⁴ 61 13 February R2 Strombachs R 63 63 11 February R1 George B LL 62 64 10 February Q2 George B Alt 63 61 9 February Q1 Bass F 62 62 9 February Cleveland • ATP CH 75 QF Smith C 2 64 76⁴ 6 February R2 Langmo C 63 67⁸ 64 5 February R1 Kuhar M Q 61 62 3 February Q2 Zhu E 10 61 76⁴ 2 February Q1 Basel V Alt 61 61 1 February San Diego • ATP CH 100 R1 Hijikata R 2 26 63 62 29 January Q2 Seggerman R Alt 60 64 27 January Q1 Seelig K PR 63 64 27 January Winston-Salem • M 25 QF Smith K 4 67⁵ 75 75 16 January R2 Braswell M PR 61 76³ 15 January R1 XuKuang Qing Q 63 62 14 January Winston-Salem • M 25 QF Kennedy J WC 64 67⁴ 62 9 January R2 Ion N Q 46 63 64 8 January R1 Perot R 4 75 61 7 January