| year | summary | Hard | Clay | I. hard | Carpet | Grass | Acrylic |
| 2019 | 0/1 | 0/1 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2018 | 13/7 | 10/6 | 0/0 | 0/0 | 3/1 | 0/0 | 0/0 |
| 2017 | 20/12 | 12/8 | 3/1 | 0/1 | 5/2 | 0/0 | 0/0 |
| 2016 | 0/1 | 0/1 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2015 | 2/1 | 2/1 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 |
| TOTAL | 35/22 | 24/17 | 3/1 | 0/1 | 8/3 | 0/0 | 0/0 |
| perc. % | 61.4 % | 58.54 % | 75 % | 0 % | 72.73 % | 0 % | 0 % |
Yuto Sakai / Fixtures
| no matches found |
Yuto Sakai form / year 2018 / surface: Hard
Yuto Sakai / year 2018 / surface: Hard
| 08.04.18 | qual. | Issei Okamura | Yuto Sakai | 6-2, 6-3 |  | match details |  Japan F6 | Hard |
| 08.04.18 | q 2 | Yuto Sakai | Ryuhei Azuma | 6-2, 6-2 |  | match details | ||
| 07.04.18 | q 1 | Yuto Sakai | Takafumi Teramoto | 6-2, 6-4 | | match details | ||
| 17.03.18 | q 2 | Kosuke Ogura | Yuto Sakai | 6-4, 6-3 | | match details | Japan F3 | Hard |
| 13.03.18 | 1st round | Yunosuke Tanaka | Yuto Sakai | 6-4, 4-6, 7-63 | | match details | Japan F2 | Hard |
| 12.03.18 | qual. | Yuto Sakai | Shunrou Takeshima | 6-4, 6-2 | | match details | ||
| 11.03.18 | q 2 | Yuto Sakai | Gengo Kikuchi | 6-2, 6-2 | | match details | ||
| 10.03.18 | q 1 | Yuto Sakai | Bang Shuo Yin | 6-3, 6-2 | | match details | ||
| 21.02.18 | 1st round | Chun Hsin Tseng | Yuto Sakai | 4-6, 6-2, 6-1 | | match details |  Turkey F7 | Hard |
| 19.02.18 | qual. | Yuto Sakai | Kazuki Shimizu | 6-2, 6-3 | | match details | ||
| 18.02.18 | q 1 | Yuto Sakai | Orlando Luz | 1-6, 7-64, 6-4 | | match details | ||
| 18.02.18 | q 2 | Yuto Sakai | Franco Capalbo | 6-4, 6-1 | | match details | ||
| 11.02.18 | q 2 | Andrei Stefan Apostol | Yuto Sakai | 4-6, 7-5, 6-3 | | match details | Turkey F6 | Hard |
| 10.02.18 | q 1 | Yuto Sakai | Sreten Spasic | 6-1, 6-0 | | match details | ||
| 31.12.17 | qual. | Alberto Lim | Yuto Sakai | 7-66, 6-4 | | match details |  Hong Kong | Hard |
| 30.12.17 | q 1 | Yuto Sakai | Chun-Ming Yam | 6-1, 6-0 | | match details |
