Nombre: Naoto Kai
País: Japan
Fecha de nacimiento: 18.04.97, 29 años
Partidos totales: 16
ganar: 2
%: 12.5 %
País: Japan
Fecha de nacimiento: 18.04.97, 29 años
Partidos totales: 16
ganar: 2
%: 12.5 %
| año | resumen | Difícil | Arcilla | I. difícil | Alfombra | Césped | Acrílico |
| 2019 | 0/1 | 0/1 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2018 | 2/2 | 2/2 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2017 | 0/5 | 0/3 | 0/1 | 0/0 | 0/1 | 0/0 | 0/0 |
| 2016 | 0/4 | 0/3 | 0/0 | 0/0 | 0/1 | 0/0 | 0/0 |
| 2015 | 0/2 | 0/0 | 0/1 | 0/0 | 0/1 | 0/0 | 0/0 |
| TOTAL | 2/14 | 2/9 | 0/2 | 0/0 | 0/3 | 0/0 | 0/0 |
| porc. % | 12.5 % | 18.18 % | 0 % | 0 % | 0 % | 0 % | 0 % |
Naoto Kai / programado / pasado
| No se encontraron partidos |
Naoto Kai form
Naoto Kai / últimos 50 partidos
| 25.02.19 | 1er ronda | Cheong-Eui Kim | Naoto Kai | 6-1, 6-3 |  | match details |  Yokohama Challenger | Difícil |
| 06.03.18 | calif. | Rio Noguchi | Naoto Kai | 6-1, 4-6, 6-2 | | match details | Japan F1 | Difícil |
| 04.03.18 | c 2 | Naoto Kai | Kaito Itsusaki | 6-77, 6-2, 6-3 |  | match details | ||
| 03.03.18 | c 1 | Naoto Kai | Kosuke Okagaki | 4-6, 6-0, 6-2 | | match details | ||
| 23.02.18 | c 1 | Takanyi Garanganga | Naoto Kai | 6-3, 4-6, 7-65 | | match details | Yokohama Challenger | Difícil |
| 12.06.17 | c 1 | Steven Goh | Naoto Kai | 6-3, 6-2 | | match details | Japan F8 | Alfombra |
| 06.06.17 | 1er ronda | Shintaro Imai | Naoto Kai | 6-1, 6-2 | | match details | Japan F7 | Difícil |
| 29.05.17 | c 1 | Ibuki Furuta | Naoto Kai | 6-2, 6-0 | | match details | Japan F6 | Arcilla |
| 27.03.17 | c 1 | Yuki Nakamura | Naoto Kai | 6-4, 4-6, 6-1 | | match details | Japan F4 | Difícil |
| 06.03.17 | c 1 | Ibuki Furuta | Naoto Kai | 6-2, 6-0 | | match details | Japan F1 | Difícil |
| 13.06.16 | c 1 | Masakatsu Noguchi | Naoto Kai | 6-0, 6-2 | | match details | Japan F8 | Alfombra |
| 05.06.16 | 1er ronda | Ryota Tanuma | Naoto Kai | 6-4, 6-3 | | match details | Japan F7 | Difícil |
| 28.03.16 | c 1 | Gengo Kikuchi | Naoto Kai | 6-2, 7-61 | | match details | Japan F4 | Difícil |
| 07.03.16 | c 1 | Kazuma Kawachi | Naoto Kai | 4-6, 6-3, 6-4 | | match details | Japan F1 | Difícil |
| 22.06.15 | c 1 | Motoaki Kita | Naoto Kai | 6-3, 6-3 | | match details | Japan F8 | Arcilla |
| 15.06.15 | c 1 | Keisuke Numajiri | Naoto Kai | 6-2, 6-3 | | match details | Japan F7 | Alfombra |