Name: Masaya Kobayashi
Country: Japan
Birthdate: 22.09.97, 26 years
Matches total: 74
Win: 41
%: 55.41 %
Country: Japan
Birthdate: 22.09.97, 26 years
Matches total: 74
Win: 41
%: 55.41 %
| year | summary | Hard | Clay | I. hard | Carpet | Grass | Acrylic |
| 2019 | 1/3 | 1/2 | 0/1 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2018 | 14/10 | 11/8 | 0/1 | 0/0 | 3/1 | 0/0 | 0/0 |
| 2017 | 21/12 | 20/11 | 1/1 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2016 | 5/8 | 4/4 | 0/1 | 0/2 | 1/1 | 0/0 | 0/0 |
| TOTAL | 41/33 | 36/25 | 1/4 | 0/2 | 4/2 | 0/0 | 0/0 |
| perc. % | 55.41 % | 59.02 % | 20 % | 0 % | 66.67 % | 0 % | 0 % |
Masaya Kobayashi / scheduled / last
| no matches found |
Masaya Kobayashi form / year 2018 / surface: Hard
Masaya Kobayashi / year 2018 / surface: Hard
| 08.04.18 | q 2 | Ryota Kishi | Masaya Kobayashi | 6-2, 6-1 |  | match details |  Japan F6 | Hard |
| 07.04.18 | q 1 | Masaya Kobayashi | Kaito Muranishi | 7-5, 6-3 |  | match details | ||
| 21.03.18 | 2nd round | Min-Kyu Song | Masaya Kobayashi | 6-1, Masaya Kobayashi - retired | | match details | Japan F3 | Hard |
| 19.03.18 | 1st round | Masaya Kobayashi | Takashi Saito | 6-4, 4-6, 6-4 | | match details | ||
| 12.03.18 | 1st round | Kento Takeuchi | Masaya Kobayashi | 6-3, 4-6, 6-3 | | match details | Japan F2 | Hard |
| 05.03.18 | qual. | Gengo Kikuchi | Masaya Kobayashi | 6-2, 7-5 | | match details | Japan F1 | Hard |
| 04.03.18 | q 2 | Masaya Kobayashi | Tomohiro Masabayashi | 6-1, 3-6, 7-5 | | match details | ||
| 03.03.18 | q 1 | Masaya Kobayashi | Masahiro Fukuda | 6-2, 6-2 | | match details | ||
| 21.02.18 | 1st round | Attila Balazs | Masaya Kobayashi | 6-1, 6-3 | | match details |  Turkey F7 | Hard |
| 19.02.18 | qual. | Bogdan Ionut Apostol | Masaya Kobayashi | 6-4, 3-6, 6-4 | | match details | ||
| 18.02.18 | q 2 | Masaya Kobayashi | Michiel De Krom | 6-2, 6-1 | | match details | ||
| 17.02.18 | q 1 | Masaya Kobayashi | Dmitry Myagkov | 6-2, 6-3 | | match details | ||
| 12.02.18 | qual. | Sho Shimabukuro | Masaya Kobayashi | 6-76, 6-3, 6-2 | | match details | Turkey F6 | Hard |
| 11.02.18 | q 2 | Masaya Kobayashi | Felipe Meligeni Alves | 6-2, 6-1 | | match details | ||
| 10.02.18 | q 1 | Masaya Kobayashi | Mert Alkaya | 6-3, 6-3 | | match details | ||
| 03.01.18 | 2nd round | Shintaro Imai | Masaya Kobayashi | 6-3, 6-0 | | match details |  Hong Kong | Hard |
| 01.01.18 | 1st round | Masaya Kobayashi | Chien-Hsun Lo | 6-3, 5-2, Chien-Hsun Lo - retired | | match details | ||
| 31.12.17 | qual. | Masaya Kobayashi | Andrea Bessire | 7-5, 6-0 | | match details | ||
| 30.12.17 | q 1 | Masaya Kobayashi | Tsung-Hao Huang | 7-64, 6-4 | | match details |
