Stockholm • ATP 250 Q1 Kovalik J 2 76² 76⁶ 6 November Bergame • ATP CH 50 R1 Broady L 5 63 36 63 1 November Losinj • ATP CH 50 R1 Bourgue M 8 52 ab 18 October Sibiu • ATP CH 50 R1 Kopriva V 75 75 27 September Szczecin • ATP CH 125 R1 Rybakov A Q 61 62 14 September Banja Luka • ATP CH 50 R1 Topo M WC 46 76⁴ 62 7 September US Open • Grand Slam Q1 Rodionov J 19 64 63 24 August Hambourg • ATP 500 Q1 Masur D 26 64 63 10 July Salzburg • ATP CH 125 R2 Cuevas P 2 61 64 8 July R1 Gulbis E 62 76⁴ 6 July Wimbledon • Grand Slam Q1 Gill F WC 75 76⁶ 22 June Biella • ATP CH 50 R1 Berrettini J Q 61 20 ab 1 June French Open • Grand Slam Q2 Otte O 61 75 26 May Q1 Krueger M 36 63 62 25 May Rome • ATP CH 50 R2 Cobolli F WC 62 62 29 April R1 Sijsling I Q 61 76⁶ 27 April Belgrade • ATP 250 R1 Millman J 7 75 64 19 April Belgrade • ATP CH 125 R1 Trungelliti M Q 63 62 14 April Split • ATP CH 50 QF Collarini A 62 63 9 April R2 Marterer M 61 63 7 April R1 Rosol L 61 63 5 April Marbella • ATP CH 50 R1 Milojevic N 36 63 64 30 March Miami • ATP Masters 1000 Q1 Zverev M WC 76³ 62 22 March Acapulco • ATP 500 Q1 Seyboth Wild T 5 63 46 64 14 March Las Palmas de Gran Canaria • ATP CH 50 R1 Bonadio R 52 ab 1 March Las Palmas de Gran Canaria • ATP CH 50 R1 Coppejans K 61 61 22 February Istanbul • ATP CH 125 R1 Musetti L 6 64 76⁶ 19 January Australian Open • Grand Slam Q1 Mmoh M 63 62 11 January