Nume: Naoto Kai
Ţara: Japonia
Data naşterii: 18.04.97, 29 Vârsta
Total meciuri: 16
Victorii: 2
Succes: 12.5 %
Ţara: Japonia
Data naşterii: 18.04.97, 29 Vârsta
Total meciuri: 16
Victorii: 2
Succes: 12.5 %
| an | sumar | Hard | Zgura | In. Hard | Carpet | Iarbă | Acryl |
| 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 |
| ÎN TOTAL | 2/14 | 2/9 | 0/2 | 0/0 | 0/3 | 0/0 | 0/0 |
| succes % | 12.5 % | 18.18 % | 0 % | 0 % | 0 % | 0 % | 0 % |
Naoto Kai / nejucate / ultimele
| nu a fost găsit nici un meci |
Naoto Kai form
Naoto Kai / ultimele 50 meciuri
| 25.02.19 | 1-a rundă | Cheong-Eui Kim | Naoto Kai | 6-1, 6-3 |  | detaliu meci |  Yokohama Challenger | Hard |
| 06.03.18 | Calificare | Rio Noguchi | Naoto Kai | 6-1, 4-6, 6-2 | | detaliu meci | Japan F1 | Hard |
| 04.03.18 | 2-a rundă de calif. | Naoto Kai | Kaito Itsusaki | 6-77, 6-2, 6-3 |  | detaliu meci | ||
| 03.03.18 | 1-a rundă de calif. | Naoto Kai | Kosuke Okagaki | 4-6, 6-0, 6-2 | | detaliu meci | ||
| 23.02.18 | 1-a rundă de calif. | Takanyi Garanganga | Naoto Kai | 6-3, 4-6, 7-65 | | detaliu meci | Yokohama Challenger | Hard |
| 12.06.17 | 1-a rundă de calif. | Steven Goh | Naoto Kai | 6-3, 6-2 | | detaliu meci | Japan F8 | Carpet |
| 06.06.17 | 1-a rundă | Shintaro Imai | Naoto Kai | 6-1, 6-2 | | detaliu meci | Japan F7 | Hard |
| 29.05.17 | 1-a rundă de calif. | Ibuki Furuta | Naoto Kai | 6-2, 6-0 | | detaliu meci | Japan F6 | Zgura |
| 27.03.17 | 1-a rundă de calif. | Yuki Nakamura | Naoto Kai | 6-4, 4-6, 6-1 | | detaliu meci | Japan F4 | Hard |
| 06.03.17 | 1-a rundă de calif. | Ibuki Furuta | Naoto Kai | 6-2, 6-0 | | detaliu meci | Japan F1 | Hard |
| 13.06.16 | 1-a rundă de calif. | Masakatsu Noguchi | Naoto Kai | 6-0, 6-2 | | detaliu meci | Japan F8 | Carpet |
| 05.06.16 | 1-a rundă | Ryota Tanuma | Naoto Kai | 6-4, 6-3 | | detaliu meci | Japan F7 | Hard |
| 28.03.16 | 1-a rundă de calif. | Gengo Kikuchi | Naoto Kai | 6-2, 7-61 | | detaliu meci | Japan F4 | Hard |
| 07.03.16 | 1-a rundă de calif. | Kazuma Kawachi | Naoto Kai | 4-6, 6-3, 6-4 | | detaliu meci | Japan F1 | Hard |
| 22.06.15 | 1-a rundă de calif. | Motoaki Kita | Naoto Kai | 6-3, 6-3 | | detaliu meci | Japan F8 | Zgura |
| 15.06.15 | 1-a rundă de calif. | Keisuke Numajiri | Naoto Kai | 6-2, 6-3 | | detaliu meci | Japan F7 | Carpet |
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