| 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 2017
Yuto Sakai / year 2017
| 24.12.17 | qual. | Chan-Yeong Oh | Yuto Sakai | 6-3, 6-3 |  | match details |  Hong Kong | Hard |
| 23.12.17 | q 1 | Yuto Sakai | Congsup Congcar | 6-4, 6-4 |  | match details | ||
| 11.11.17 | q 2 | Hiroyasu Ehara | Yuto Sakai | 6-70, 6-2, 6-3 | | match details |  Toyota Challenger | Carpet |
| 11.11.17 | q 1 | Yuto Sakai | Masaki Osafune | 7-64, 1-6, 6-1 | | match details | ||
| 04.11.17 | q 1 | Sora Fukuda | Yuto Sakai | 6-1, 6-3 | | match details | Kobe Challenger | I. hard |
| 15.06.17 | 2nd round | Yusuke Watanuki | Yuto Sakai | 6-4, 3-6, 6-3 | | match details | Japan F8 | Carpet |
| 14.06.17 | 1st round | Yuto Sakai | Yohei Ono | 7-5, 6-0 | | match details | ||
| 12.06.17 | qual. | Yuto Sakai | Luca Castelnuovo | 6-78, 6-4, 7-68 | | match details | ||
| 12.06.17 | q 1 | Yuto Sakai | Nobuhiro Aihara | 6-0, 6-2 | | match details | ||
| 12.06.17 | q 2 | Yuto Sakai | Shinji Hazawa | 6-1, 6-4 | | match details | ||
| 01.06.17 | 2nd round | Sora Fukuda | Yuto Sakai | 7-63, 6-3 | | match details | Japan F6 | Clay |
| 30.05.17 | 1st round | Yuto Sakai | Arata Onozawa | 7-614, 7-5 | | match details | ||
| 29.05.17 | q 1 | Yuto Sakai | Ryusuke Horiuchi | 6-3, 6-2 | | match details | ||
| 29.05.17 | qual. | Yuto Sakai | Keisuke Watanuki | 7-67, 7-64 | | match details | ||
| 03.04.17 | q 1 | Kazuki Nishiwaki | Yuto Sakai | 6-2, 7-65 | | match details | Japan F5 | Hard |
| 20.03.17 | q 1 | Yuto Sakai | Naru Shirafuji | 6-3, 6-4 | | match details | Japan F3 | Hard |
| 20.03.17 | q 2 | Shane Vinsant | Yuto Sakai | 6-3, 6-2 | | match details | ||
| 13.03.17 | q 1 | Yuhei Kono | Yuto Sakai | 6-3, 7-66 | | match details | Japan F2 | Hard |
| 06.03.17 | q 2 | Masaya Kobayashi | Yuto Sakai | 7-68, 7-5 | | match details | Japan F1 | Hard |
| 06.03.17 | q 1 | Yuto Sakai | Yuki Nakamura | 7-613, 7-5 | | match details | ||
| 22.02.17 | 1st round | Yutaro Matsuzaki | Yuto Sakai | 6-4, 6-4 | | match details |  Indonesia F3 | Hard |
| 20.02.17 | q 2 | Yuto Sakai | Sherwin Foo | 6-4, 6-1 | | match details | ||
| 20.02.17 | qual. | Yuto Sakai | Chien-Hsun Lo | 6-1, 1-6, 7-62 | | match details | ||
| 20.02.17 | q 1 | Yuto Sakai | Maxime Gayte | 6-4, 6-3 | | match details | ||
| 15.02.17 | 1st round | Alexandre Muller | Yuto Sakai | 7-5, 6-3 | | match details | Indonesia F2 | Hard |
| 13.02.17 | q 2 | Yuto Sakai | Kittiphong Wachiramanowong | 7-63, 6-3 | | match details | ||
| 13.02.17 | qual. | Yuto Sakai | Yutaro Matsuzaki | 7-69, 6-4 | | match details | ||
| 13.02.17 | q 1 | Yuto Sakai | Daniel Czepielewski | 6-3, 6-2 | | match details | ||
| 07.02.17 | 1st round | Shintaro Imai | Yuto Sakai | 7-63, 6-2 | | match details | Indonesia F1 | Hard |
| 06.02.17 | q 2 | Yuto Sakai | Aljaz Radinski | 7-64, 7-5 | | match details | ||
| 06.02.17 | qual. | Yuto Sakai | Robin Thour | 7-5, 6-3 | | match details | ||
| 06.02.17 | q 1 | Yuto Sakai | Fitriadi M Rifqi | 6-74, 7-63, 6-3 | | match details |
