Japan
22.09.97, 27 years
22.09.97, 27 years
Country
Birthdate
Height
Weight
Profi since
Play
Ranking's position
Points
Prize money
Birthdate
Height
Weight
Profi since
Play
Ranking's position
Points
Prize money
Japan
19.11.93, 31 years
19.11.93, 31 years
Masaya Kobayashi vs. Keisuke Watanuki - head to head matches
| 27.03.17 | qual. | Masaya Kobayashi | Keisuke Watanuki | 6-3, 6-2 | match details |  Japan F4 | Hard |
Masaya Kobayashi form & Keisuke Watanuki form
Masaya Kobayashi - last matches
| M15 Karuizawa - Clay | ||||
| 26.05.19 q 1 | vs. Jake Delaney | 0-6, 5-7 |  | match details |
| M15 Kofu - Hard | ||||
| 17.03.19 q 1 | vs. Shunrou Takeshima | 2-6, 1-6 | | match details |
| M15 Nishi - Hard | ||||
| 12.03.19 qual. | vs. Gengo Kikuchi | 6-4, 5-7, 6-10 | | match details |
| 10.03.19 q 1 | vs. Ching-Mou Yu | 6-2, 6-2 |  | match details |
| Japan F8 - Carpet | ||||
| 12.06.18 1st round | vs. Gengo Kikuchi | 0-6, 1-6 | | match details |
| 11.06.18 qual. | vs. Ryuhei Azuma | 6-0, 7-5 | | match details |
| 09.06.18 q 1 | vs. Steven Goh | 3-6, 6-3, 6-0 | | match details |
| 09.06.18 q 2 | vs. Taisei Miyamoto | 6-3, 6-3 | | match details |
| Japan F7 - Clay | ||||
| 02.06.18 q 1 | vs. Kazuki Shimizu | 6-76, 3-6 | | match details |
| Japan F6 - Hard | ||||
| 08.04.18 q 2 | vs. Ryota Kishi | 2-6, 1-6 | | match details |
| 07.04.18 q 1 | vs. Kaito Muranishi | 7-5, 6-3 | | match details |
| Japan F3 - Hard | ||||
| 21.03.18 2nd round | vs. Min-Kyu Song | 1-6, - Masaya Kobayashi - retired | | match details |
| 19.03.18 1st round | vs. Takashi Saito | 6-4, 4-6, 6-4 | | match details |
| Japan F2 - Hard | ||||
| 12.03.18 1st round | vs. Kento Takeuchi | 3-6, 6-4, 3-6 | | match details |
| Japan F1 - Hard | ||||
| 05.03.18 qual. | vs. Gengo Kikuchi | 2-6, 5-7 | | match details |
| 04.03.18 q 2 | vs. Tomohiro Masabayashi | 6-1, 3-6, 7-5 | | match details |
| 03.03.18 q 1 | vs. Masahiro Fukuda | 6-2, 6-2 | | match details |
 Turkey F7 - Hard | ||||
| 21.02.18 1st round | vs. Attila Balazs | 1-6, 3-6 | | match details |
| 19.02.18 qual. | vs. Bogdan Ionut Apostol | 4-6, 6-3, 4-6 | | match details |
| 18.02.18 q 2 | vs. Michiel De Krom | 6-2, 6-1 | | match details |
| 17.02.18 q 1 | vs. Dmitry Myagkov | 6-2, 6-3 | | match details |
| Turkey F6 - Hard | ||||
| 12.02.18 qual. | vs. Sho Shimabukuro | 7-66, 3-6, 2-6 | | match details |
| 11.02.18 q 2 | vs. Felipe Meligeni Alves | 6-2, 6-1 | | match details |
| 10.02.18 q 1 | vs. Mert Alkaya | 6-3, 6-3 | | match details |
 Hong Kong - Hard | ||||
| 03.01.18 2nd round | vs. Shintaro Imai | 3-6, 0-6 | | match details |
| 01.01.18 1st round | vs. Chien-Hsun Lo | 6-3, 5-2, Chien-Hsun Lo - retired | | match details |
| 31.12.17 qual. | vs. Andrea Bessire | 7-5, 6-0 | | match details |
| 30.12.17 q 1 | vs. Tsung-Hao Huang | 7-64, 6-4 | | match details |
| Hong Kong - Hard | ||||
| 26.12.17 1st round | vs. Shintaro Imai | 1-6, 1-6 | | match details |
| 24.12.17 qual. | vs. Soichiro Moritani | 6-2, 6-2 | | match details |
Keisuke Watanuki - last matches
| Japan F8 - Carpet | ||||
| 13.06.18 2nd round | vs. Sho Katayama | 2-6, 0-6 | | match details |
| 11.06.18 qual. | vs. Daisuke Sumizawa | 6-4, 2-6, 6-2 | | match details |
| 11.06.18 1st round | vs. Teppei Uesugi | 6-3, 6-3 | | match details |
| 09.06.18 q 2 | vs. Takuya Kureoka | 7-65, 6-1 | | match details |
| 09.06.18 q 1 | vs. Jun Mizuta | 7-63, 6-1 | | match details |
| Japan F3 - Hard | ||||
| 17.03.18 q 1 | vs. Keisuke Numajiri | 3-6, 1-6 | | match details |
| Kyoto Challenger - Carpet | ||||
| 17.02.18 q 1 | vs. Kosuke Shibano | 4-6, 4-6 | | match details |
| Japan F8 - Carpet | ||||
| 15.06.17 2nd round | vs. Hiroyasu Ehara | 1-6, 3-6 | | match details |
| 14.06.17 1st round | vs. Ryota Kishi | 6-0, 6-1 | | match details |
| 12.06.17 q 2 | vs. Yosuke Oka | 6-0, 6-2 | | match details |
| 12.06.17 qual. | vs. Kazuki Nishiwaki | 6-2, 6-2 | | match details |
| 12.06.17 q 1 | vs. Taketo Takamisawa | 4-6, 6-2, 6-3 | | match details |
| Japan F7 - Hard | ||||
| 08.06.17 2nd round | vs. Kento Takeuchi | 3-6, 5-7 | | match details |
| 06.06.17 1st round | vs. Tung-Lin Wu | 4-3, Tung-Lin Wu - retired | | match details |
| Japan F6 - Clay | ||||
| 29.05.17 q 1 | vs. Han Sungmin | 6-4, 6-0 | | match details |
| 29.05.17 qual. | vs. Yuto Sakai | 6-77, 6-74 | | match details |
| Japan F5 - Hard | ||||
| 03.04.17 qual. | vs. Masaki Sasai | 2-6, 4-6 | | match details |
| 03.04.17 q 1 | vs. Takashi Yasugami | 6-4, 2-6, 7-5 | | match details |
| Japan F4 - Hard | ||||
| 27.03.17 q 1 | vs. Yu Chang | 6-78, 6-3, 6-4 | | match details |
| 27.03.17 qual. | vs. Masaya Kobayashi | 3-6, 2-6 | | match details |
| 27.03.17 q 2 | vs. Yuga Tashiro | 6-2, 7-63 | | match details |
| Japan F2 - Hard | ||||
| 14.03.17 1st round | vs. Yusuke Takahashi | 2-6, 2-6 | | match details |
| 13.03.17 q 1 | vs. Yuta Kawahashi | 6-2, 6-2 | | match details |
| 13.03.17 q 2 | vs. Shinta Fujii | 6-2, 2-6, 6-2 | | match details |
| 13.03.17 qual. | vs. Kittiphong Wachiramanowong | 6-4, 7-61 | | match details |
| Japan F1 - Hard | ||||
| 06.03.17 qual. | vs. Kaito Itsusaki | 3-6, 3-6 | | match details |
| 06.03.17 q 1 | vs. Taiki Kodama | 6-4, 6-3 | | match details |
| 06.03.17 q 2 | vs. Masaki Osafune | 7-64, 0-6, 6-2 | | match details |
| Japan F8 - Carpet | ||||
| 15.06.16 2nd round | vs. Sho Katayama | 3-6, 1-6 | | match details |
| 15.06.16 1st round | vs. Shunrou Takeshima | 7-65, 6-0 | | match details |
