Seita Watanabe

Kigali • ATP CH 75 Q1 Pieri S 5 61 64 1 March Suzhou • ATP CH 75 Q1 Kumasaka T 11 63 36 64 20 October Guangzhou • ATP CH 100 Q2 Ramanathan R 9 75 76⁴ 8 September Zhangjiagang • ATP CH 75 Q1 Watt J 7 63 64 24 August San Luis Potosí • ATP CH 75 Q1 Kingsley C 2 61 62 14 April Concepción • ATP CH 75 Q1 Saraiva Dos Santos P 12 75 76¹ 24 March Asunción • ATP CH 75 Q1 Huertas Del Pino C 12 46 64 61 16 March Santiago • ATP CH 75 Q1 Feldbausch K 9 61 64 9 March Nonthaburi • ATP CH 75 Q1 Shiraishi H 12 62 46 62 29 December Sydney • ATP CH 75 R1 Mott B 75 67⁵ 63 29 October