Nombre: Keisuke Saitoh
País: Japan
Fecha de nacimiento: 29.04.01, 25 años
ATP ranking: 691
TOP posición de la clasificación: 552 (05.05.25, 66 puntos)
Puntos: 48
Dinero del premio: 59927 $
Partidos totales: 325
ganar: 182
%: 56 %
País: Japan
Fecha de nacimiento: 29.04.01, 25 años
ATP ranking: 691
TOP posición de la clasificación: 552 (05.05.25, 66 puntos)
Puntos: 48
Dinero del premio: 59927 $
Partidos totales: 325
ganar: 182
%: 56 %
| año | resumen | Difícil | Arcilla | I. difícil | Alfombra | Césped | Acrílico |
| 2026 | 20/11 | 19/9 | 0/0 | 1/2 | 0/0 | 0/0 | 0/0 |
| 2025 | 21/26 | 17/23 | 0/0 | 3/2 | 0/0 | 1/1 | 0/0 |
| 2024 | 46/24 | 39/17 | 7/6 | 0/1 | 0/0 | 0/0 | 0/0 |
| 2023 | 17/27 | 14/23 | 3/4 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2022 | 29/21 | 25/17 | 4/3 | 0/1 | 0/0 | 0/0 | 0/0 |
| 2021 | 35/19 | 20/9 | 15/10 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2020 | 6/4 | 6/4 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2019 | 8/11 | 4/8 | 2/1 | 0/0 | 2/1 | 0/1 | 0/0 |
| TOTAL | 182/143 | 144/110 | 31/24 | 4/6 | 2/1 | 1/2 | 0/0 |
| porc. % | 56 % | 56.69 % | 56.36 % | 40 % | 66.67 % | 33.33 % | 0 % |
Keisuke Saitoh / programado / pasado
| No se encontraron partidos |
Keisuke Saitoh form / superficie: Difícil
Keisuke Saitoh / superficie: Difícil
| 29.05.26 | 1/4 | Alan Magadan | Keisuke Saitoh | 3-6, 6-3, 6-4 |  | match details |  M15 Gimcheon | Difícil |
| 28.05.26 | 2da ronda | Keisuke Saitoh | Tai Sach | 7-5, 6-0 |  | match details | ||
| 27.05.26 | 1er ronda | Keisuke Saitoh | Hyung Tak Oh | 6-4, 3-6, 7-5 | | match details | ||
| 22.05.26 | 1/4 | Dong Ju Kim | Keisuke Saitoh | 6-2, 7-65 | | match details | M15 Gimcheon | Difícil |
| 21.05.26 | 2da ronda | Keisuke Saitoh | Hunter Heck | 6-1, 6-1 | | match details | ||
| 20.05.26 | 1er ronda | Keisuke Saitoh | Matthew Dellavedova | 7-62, 6-3 | | match details | ||
| 17.05.26 | fin | Keisuke Saitoh | Hoyoung Roh | 6-4, 6-1 | | match details | M15 Andong | Difícil |
| 16.05.26 | 1/2 | Keisuke Saitoh | Woobin Shin | 6-4, 5-7, 7-5 | | match details | ||
| 15.05.26 | 1/4 | Keisuke Saitoh | Sanhui Shin | 6-3, 2-6, 6-4 | | match details | ||
| 14.05.26 | 2da ronda | Keisuke Saitoh | Shinji Hazawa | 6-3, 6-1 | | match details | ||
| 13.05.26 | 1er ronda | Keisuke Saitoh | Ko Suzuki | 6-3, 6-1 | | match details | ||
| 02.04.26 | 2da ronda | Chase Ferguson | Keisuke Saitoh | 6-4, 6-3 | | match details |  M15 Kashiwa | Difícil |
| 31.03.26 | 1er ronda | Keisuke Saitoh | Noah Zamora | 6-3, 6-3 | | match details | ||
| 24.03.26 | 1er ronda | Emile Hudd | Keisuke Saitoh | 6-3, 7-67 | | match details | M15 Tsukuba | Difícil |
| 05.03.26 | 2da ronda | Li Tu | Keisuke Saitoh | 6-1, 6-4 | | match details |  M25 Launceston | Difícil |
| 04.03.26 | 1er ronda | Keisuke Saitoh | Joshua Charlton | 6-3, 7-5 | | match details | ||
| 27.02.26 | 1/4 | Enzo Aguiard | Keisuke Saitoh | 6-3, 6-1 | | match details | M25 Burnie | Difícil |
| 26.02.26 | 2da ronda | Keisuke Saitoh | Tai Sach | 6-4, 7-5 | | match details | ||
| 25.02.26 | 1er ronda | Keisuke Saitoh | Zachary Adam-Gedge | 6-3, 6-3 | | match details | ||
| 30.01.26 | 1/4 | Oleksandr Ovcharenko | Keisuke Saitoh | 7-62, 7-5 | | match details |  M15 Monastir | Difícil |
| 29.01.26 | 2da ronda | Keisuke Saitoh | Luca Castagnola | 4-6, 7-5, 7-5 | | match details | ||
| 28.01.26 | 1er ronda | Keisuke Saitoh | Toufik Sahtali | 6-0, 6-1 | | match details | ||
| 23.01.26 | 2da ronda | Dimitris Sakellaridis | Keisuke Saitoh | 6-1, 6-4 | | match details | M15 Monastir | Difícil |
| 22.01.26 | 1er ronda | Keisuke Saitoh | Petr Nesterov | 6-4, 4-6, 7-65 | | match details | ||
| 17.01.26 | 1/2 | Lukas Pokorny | Keisuke Saitoh | 6-0, 6-4 | | match details | M25 Monastir | Difícil |
| 17.01.26 | 1/4 | Keisuke Saitoh | Dimitris Sakellaridis | 6-3, 6-4 | | match details | ||
| 15.01.26 | 2da ronda | Keisuke Saitoh | Egor Agafonov | 7-5, 7-5 | | match details | ||
| 14.01.26 | 1er ronda | Keisuke Saitoh | Tomas Antonio Serrano Luis | 6-2, 6-3 | | match details | ||
| 28.11.25 | 1/4 | Geun Jun Kim | Keisuke Saitoh | 6-4, 6-2 | | match details | M15 Gimcheon | Difícil |
| 27.11.25 | 2da ronda | Keisuke Saitoh | Woong Bi Lee | 7-65, 6-3 | | match details | ||
| 26.11.25 | 1er ronda | Keisuke Saitoh | Dong Ju Kim | 6-76, 6-4, 7-67 | | match details | ||
| 21.11.25 | 1/4 | Theodore Dean | Keisuke Saitoh | 6-1, 6-0 | | match details | M15 Gimcheon | Difícil |
| 20.11.25 | 2da ronda | Keisuke Saitoh | Yunseok Jang | 6-1, 6-2 | | match details | ||
| 18.11.25 | 1er ronda | Keisuke Saitoh | Ko Suzuki | 6-1, 6-2 | | match details | ||
| 02.11.25 | c 1 | Koki Matsuda | Keisuke Saitoh | 7-5, 5-7, 6-4 | | match details | Matsuyama Challenger | Difícil |
| 01.11.25 | 1/2 | Moerani Bouzige | Keisuke Saitoh | 7-66, 6-4 | | match details | M15 Yanagawa | Difícil |
| 31.10.25 | 1/4 | Keisuke Saitoh | Yuta Kawahashi | 4-6, 6-4, 6-2 | | match details | ||
| 30.10.25 | 2da ronda | Keisuke Saitoh | Shu Muto | 6-2, 6-2 | | match details | ||
| 28.10.25 | 1er ronda | Keisuke Saitoh | Geun Jun Kim | 4-6, 6-1, 6-3 | | match details | ||
| 18.09.25 | 2da ronda | Yusuke Takahashi | Keisuke Saitoh | 7-61, 6-0 | | match details | M25 Takasaki | Difícil |
| 17.09.25 | 1er ronda | Keisuke Saitoh | Koki Matsuda | 6-3, 4-6, 6-2 | | match details | ||
| 10.09.25 | 1er ronda | Masamichi Imamura | Keisuke Saitoh | 6-3, 6-3 | | match details | M25 Sapporo | Difícil |
| 02.09.25 | 1er ronda | Naoki Nakagawa | Keisuke Saitoh | 6-4, 6-4 | | match details | M25 Sapporo | Difícil |
| 28.08.25 | 2da ronda | Soon-Woo Kwon | Keisuke Saitoh | 6-2, 6-0 | | match details | .png){kind=small} M25 Taipei | Difícil |
| 27.08.25 | 1er ronda | Keisuke Saitoh | Yong Joon Park | 6-2, 6-2 | | match details | ||
| 19.08.25 | 1er ronda | Masamichi Imamura | Keisuke Saitoh | 6-3, 6-4 | | match details | M25 Taipei | Difícil |
| 14.07.25 | c 1 | Andres Martin | Keisuke Saitoh | 6-1, 7-5 | | match details |  Granby Challenger | Difícil |
| 01.07.25 | 1er ronda | Daniel Milavsky | Keisuke Saitoh | 6-2, 6-4 | | match details | M25 Laval | Difícil |
| 01.06.25 | c 1 | Yibing Wu | Keisuke Saitoh | 6-1, 6-3 | | match details |  Tyler Challenger | Difícil |
| 25.05.25 | c 1 | Hyeon Chung | Keisuke Saitoh | 6-0, 6-2 | | match details | Little Rock | Difícil |
| 04.05.25 | c 1 | Andre Ilagan | Keisuke Saitoh | 6-2, 6-2 | | match details |  Wuxi Challenger | Difícil |
| 23.04.25 | 1er ronda | Riku Takahata | Keisuke Saitoh | 6-4, 6-4 | | match details | M15 Osaka | Difícil |
| 06.04.25 | fin | Yusuke Takahashi | Keisuke Saitoh | 6-2, 6-0 | | match details | M15 Kashiwa | Difícil |
| 06.04.25 | 1/2 | Keisuke Saitoh | Hikaru Shiraishi | 6-75, 6-4, 7-65 | | match details | ||
| 05.04.25 | 1/4 | Keisuke Saitoh | Ryotaro Matsumura | 4-6, 6-2, 6-3 | | match details | ||
| 04.04.25 | 2da ronda | Keisuke Saitoh | Issei Okamura | 6-2, 6-2 | | match details | ||
| 01.04.25 | 1er ronda | Keisuke Saitoh | Ryo Tabata | 6-1, 4-6, 6-3 | | match details | ||
| 21.03.25 | 1/4 | Oliver Crawford | Keisuke Saitoh | 6-3, 6-2 | | match details | M25 Shenzhen | Difícil |
| 20.03.25 | 2da ronda | Keisuke Saitoh | Jie Cui | 3-6, 5-1, Jie Cui - retirado | | match details | ||
| 18.03.25 | 1er ronda | Keisuke Saitoh | Naoki Tajima | 6-4, 6-1 | | match details | ||
| 12.03.25 | 1er ronda | Kaichi Uchida | Keisuke Saitoh | 3-6, 6-3, 6-2 | | match details | M25 Luan | Difícil |
| 12.02.25 | 1er ronda | Kody Pearson | Keisuke Saitoh | 6-3, 6-1 | | match details |  M25 Timaru | Difícil |
| 04.02.25 | 1er ronda | Andre Ilagan | Keisuke Saitoh | 7-5, 6-2 | | match details | Brisbane 2 | Difícil |
| 03.02.25 | calif. | Keisuke Saitoh | Thomas Braithwaite | 6-4, 6-4 | | match details | ||
| 02.02.25 | c 1 | Keisuke Saitoh | Ty Host | 6-2, 6-4 | | match details | ||
| 26.01.25 | c 1 | Sam Ryan Ziegann | Keisuke Saitoh | 6-2, 6-4 | | match details | Brisbane 1 | Difícil |
| 05.01.25 | c 1 | Jakub Paul | Keisuke Saitoh | 6-3, 6-4 | | match details |  Nonthaburi 2 | Difícil |
| 31.12.24 | 1er ronda | Shintaro Mochizuki | Keisuke Saitoh | 6-4, 6-4 | | match details |  Noumea Challenger | Difícil |
| 24.12.24 | 1er ronda | Fitriadi M Rifqi | Keisuke Saitoh | 4-6, 7-5, 6-2 | | match details |  M15 Bali | Difícil |
| 25.11.24 | calif. | Jakub Paul | Keisuke Saitoh | 7-63, 7-62 | | match details | Yokkaichi Challenger | Difícil |
| 24.11.24 | c 1 | Keisuke Saitoh | Ji Sung Nam | 6-1, 6-3 | | match details | ||
| 16.11.24 | c 1 | Petr Bar Biryukov | Keisuke Saitoh | 7-5, 6-2 | | match details | Yokohama Challenger | Difícil |
| 22.09.24 | fin | Masamichi Imamura | Keisuke Saitoh | Keisuke Saitoh - walk over | | match details | M25 Takasaki | Difícil |
| 21.09.24 | 1/2 | Keisuke Saitoh | Goncalo Oliveira | 5-1, Goncalo Oliveira - retirado | | match details | ||
| 20.09.24 | 1/4 | Keisuke Saitoh | Yusuke Takahashi | 6-3, 6-4 | | match details | ||
| 19.09.24 | 2da ronda | Keisuke Saitoh | Kosuke Ogura | 6-0, 1-6, 6-1 | | match details | ||
| 17.09.24 | 1er ronda | Keisuke Saitoh | Naoya Honda | 7-65, 6-0 | | match details | ||
| 12.09.24 | 2da ronda | Shintaro Imai | Keisuke Saitoh | 6-2, 7-66 | | match details | M25 Sapporo | Difícil |
| 10.09.24 | 1er ronda | Keisuke Saitoh | Daisuke Sumizawa | 6-1, 6-2 | | match details | ||
| 06.09.24 | 1/4 | Kokoro Isomura | Keisuke Saitoh | 6-2, 6-4 | | match details | M25 Sapporo | Difícil |
| 05.09.24 | 2da ronda | Keisuke Saitoh | Hiromasa Koyama | 6-0, 4-6, 6-3 | | match details | ||
| 04.09.24 | 1er ronda | Keisuke Saitoh | Masamichi Imamura | 7-5, 6-2 | | match details | ||
| 07.08.24 | 1er ronda | Tsung-Hao Huang | Keisuke Saitoh | 6-3, 6-2 | | match details | M25 Taipei | Difícil |
| 04.08.24 | fin | Keisuke Saitoh | Yu Hsiou Hsu | 6-3, 6-1 | | match details | M25 Taipei | Difícil |
| 03.08.24 | 1/2 | Keisuke Saitoh | Ryotaro Taguchi | 3-6, 7-63, 7-64 | | match details | ||
| 02.08.24 | 1/4 | Keisuke Saitoh | Takuya Kumasaka | 6-1, 6-4 | | match details | ||
| 01.08.24 | 2da ronda | Keisuke Saitoh | Kokoro Isomura | 6-3, 6-4 | | match details | ||
| 31.07.24 | 1er ronda | Keisuke Saitoh | Tomohiro Masabayashi | 6-1, 6-0 | | match details | ||
| 29.07.24 | calif. | Keisuke Saitoh | Chen-Yu Lu | 6-3, 6-0 | | match details | ||
| 28.07.24 | c 1 | Keisuke Saitoh | Nan Hsun Lin | 6-0, 6-1 | | match details | ||
| 05.04.24 | 1/4 | Yu Hsiou Hsu | Keisuke Saitoh | 6-3, 6-1 | | match details | M15 Kashiwa | Difícil |
| 04.04.24 | 2da ronda | Keisuke Saitoh | Daisuke Sumizawa | 7-5, 6-2 | | match details | ||
| 03.04.24 | 1er ronda | Keisuke Saitoh | Tsung-Hao Huang | 6-2, 6-3 | | match details | ||
| 01.04.24 | calif. | Keisuke Saitoh | Jimmy Yang | 6-1, 6-3 | | match details | ||
| 31.03.24 | c 1 | Keisuke Saitoh | Yuttana Charoenphon | 7-5, 6-2 | | match details | ||
| 27.03.24 | 1er ronda | Jea Moon Lee | Keisuke Saitoh | 4-6, 6-1, 6-4 | | match details | M15 Tsukuba | Difícil |
| 25.03.24 | calif. | Keisuke Saitoh | Jimmy Yang | 6-3, 6-4 | | match details | ||
| 24.03.24 | c 1 | Keisuke Saitoh | Yuttana Charoenphon | 6-1, 6-4 | | match details | ||
| 18.03.24 | c 1 | Ko Suzuki | Keisuke Saitoh | 6-3, 6-3 | | match details | M15 Nishi | Difícil |
| 14.03.24 | 2da ronda | Linang Xiao | Keisuke Saitoh | 6-4, 6-2 | | match details | M15 Hinode | Difícil |
| 13.03.24 | 1er ronda | Keisuke Saitoh | Sora Fukuda | 7-65, 3-6, 6-2 | | match details | ||
| 11.03.24 | calif. | Yuta Kikuchi | Keisuke Saitoh | 0-6, 7-5, 10-3 | | match details | ||
| 11.03.24 | c 2 | Keisuke Saitoh | Ryoto Tachi | 6-3, 6-2 | | match details | ||
| 10.03.24 | c 1 | Keisuke Saitoh | Yusuke Kusuhara | 7-62, 3-6, 10-8 | | match details | ||
| 22.02.24 | 2da ronda | Adrien Gobat | Keisuke Saitoh | 6-4, 7-5 | | match details | M15 Monastir | Difícil |
| 20.02.24 | 1er ronda | Keisuke Saitoh | Louis Tessa | 6-3, 6-1 | | match details | ||
| 07.02.24 | 1er ronda | Luca Castagnola | Keisuke Saitoh | 4-6, 6-1, 7-5 | | match details | M15 Monastir | Difícil |
| 05.02.24 | c 2 | Keisuke Saitoh | Dimitris Sakellaridis | 6-2, 7-5 | | match details | ||
| 05.02.24 | calif. | Keisuke Saitoh | Mohamed Nazim Makhlouf | 6-4, 6-3 | | match details | ||
| 04.02.24 | c 1 | Keisuke Saitoh | Gilberto Ravasio | 6-0, 6-2 | | match details | ||
| 25.01.24 | 2da ronda | Andres Fernandez Canovas | Keisuke Saitoh | 6-4, 6-1 | | match details | M15 Monastir | Difícil |
| 24.01.24 | 1er ronda | Keisuke Saitoh | Yan Bai | 6-4, 3-6, 6-1 | | match details | ||
| 22.01.24 | c 2 | Keisuke Saitoh | Niccolo Ciavarella | 5-7, 6-2, 10-6 | | match details | ||
| 22.01.24 | calif. | Keisuke Saitoh | Kylian Collignon | 6-1, 6-1 | | match details | ||
| 21.01.24 | c 1 | Keisuke Saitoh | Luca Friis | 6-0, Luca Friis - retirado | | match details | ||
| 18.01.24 | 2da ronda | Jakub Nicod | Keisuke Saitoh | 7-5, 6-4 | | match details | M15 Monastir | Difícil |
| 17.01.24 | 1er ronda | Keisuke Saitoh | Tao Mu | Tao Mu - walk over | | match details | ||
| 15.01.24 | calif. | Keisuke Saitoh | Stefan Frljanic | 6-4, 6-2 | | match details | ||
| 15.01.24 | c 2 | Keisuke Saitoh | William Mclennaghan | 6-1, 6-2 | | match details | ||
| 14.01.24 | c 1 | Keisuke Saitoh | Takahiro Kubo | 6-1, 6-0 | | match details | ||
| 10.01.24 | 1er ronda | Nicola Kuhn | Keisuke Saitoh | 6-4, 6-4 | | match details | M15 Monastir | Difícil |
| 08.01.24 | c 2 | Keisuke Saitoh | Yuta Kikuchi | 7-65, 6-2 | | match details | ||
| 08.01.24 | calif. | Keisuke Saitoh | Artur Kukasian | 7-5, 6-2 | | match details | ||
| 07.01.24 | c 1 | Keisuke Saitoh | Leon Formella | 6-1, 6-1 | | match details | ||
| 29.12.23 | 1/4 | Duckhee Lee | Keisuke Saitoh | 6-3, 7-5 | | match details | M15 Yanagawa | Difícil |
| 28.12.23 | 2da ronda | Keisuke Saitoh | Mikalai Haliak | 6-4, 6-3 | | match details | ||
| 27.12.23 | 1er ronda | Keisuke Saitoh | Taki Adachi | 6-1, 6-1 | | match details | ||
| 20.12.23 | 1er ronda | Linang Xiao | Keisuke Saitoh | 6-0, 6-2 | | match details | M15 Yanagawa | Difícil |
| 29.11.23 | 1er ronda | Blake Mott | Keisuke Saitoh | 6-2, 6-2 | | match details | M25 Gold | Difícil |
| 23.11.23 | 2da ronda | Moerani Bouzige | Keisuke Saitoh | 6-4, 2-6, 7-5 | | match details | M25 Brisbane | Difícil |
| 21.11.23 | 1er ronda | Keisuke Saitoh | Thomas Fancutt | 4-6, 7-5, 6-4 | | match details | ||
| 20.09.23 | 1er ronda | Leo Vithoontien | Keisuke Saitoh | 6-4, 6-3 | | match details | M25 Takasaki | Difícil |
| 12.09.23 | 1er ronda | Tomohiro Masabayashi | Keisuke Saitoh | 7-5, 6-3 | | match details | M25 Sapporo | Difícil |
| 06.09.23 | 1er ronda | Tomohiro Masabayashi | Keisuke Saitoh | 6-4, 3-6, 6-1 | | match details | M25 Sapporo | Difícil |
| 31.08.23 | 2da ronda | Naoki Nakagawa | Keisuke Saitoh | 6-4, 6-71, 6-1 | | match details |  M25 Hong | Difícil |
| 30.08.23 | 1er ronda | Keisuke Saitoh | Ji Hoon Son | 6-3, 7-64 | | match details | ||
| 04.08.23 | 1/4 | Isaac Becroft | Keisuke Saitoh | 6-3, 6-4 | | match details | M15 Caloundra | Difícil |
| 03.08.23 | 2da ronda | Keisuke Saitoh | Tai Sach | 6-2, 6-1 | | match details | ||
| 01.08.23 | 1er ronda | Keisuke Saitoh | Edward Winter | 7-63, 6-2 | | match details | ||
| 27.07.23 | 2da ronda | Isaac Becroft | Keisuke Saitoh | 5-7, 6-2, 6-1 | | match details | M15 Caloundra | Difícil |
| 25.07.23 | 1er ronda | Keisuke Saitoh | Matthew Burton | 6-3, 6-2 | | match details | ||
| 15.06.23 | 1er ronda | Dominik Palan | Keisuke Saitoh | 7-5, 7-64 | | match details | M25 Changwon | Difícil |
| 07.06.23 | 1er ronda | Dong Ju Kim | Keisuke Saitoh | 6-1, 6-2 | | match details | M25 Daegu | Difícil |
| 08.05.23 | c 1 | Luke Saville | Keisuke Saitoh | 6-3, 6-1 | | match details | Busan Challenger | Difícil |
| 30.04.23 | c 1 | Omar Jasika | Keisuke Saitoh | 6-0, 6-0 | | match details | Gwangju Challenger | Difícil |
| 23.04.23 | c 1 | Omar Jasika | Keisuke Saitoh | 6-4, 7-64 | | match details | Seoul Challenger | Difícil |
| 04.04.23 | 1er ronda | Yusuke Takahashi | Keisuke Saitoh | 6-4, 3-6, 6-3 | | match details | M25 Kashiwa | Difícil |
| 28.03.23 | 1er ronda | Tatsuma Ito | Keisuke Saitoh | 4-6, 7-5, 6-2 | | match details | M25 Tsukuba | Difícil |
| 20.02.23 | c 2 | Ioannis Xilas | Keisuke Saitoh | 6-3, 6-3 | | match details | M25 Monastir | Difícil |
| 19.02.23 | c 1 | Keisuke Saitoh | Raghav Singh Panwar | 6-1, 6-1 | | match details | ||
| 13.02.23 | c 2 | Mayeul Darras | Keisuke Saitoh | 2-6, 7-66, 11-9 | | match details | M25 Monastir | Difícil |
| 12.02.23 | c 1 | Keisuke Saitoh | Vitali Chvets | 6-3, 6-1 | | match details | ||
| 07.02.23 | 1er ronda | Arthur Bouquier | Keisuke Saitoh | 6-4, 6-4 | | match details | M25 Monastir | Difícil |
| 02.02.23 | 2da ronda | Mathias Bourgue | Keisuke Saitoh | 6-4, 4-6, 6-2 | | match details | M25 Monastir | Difícil |
| 01.02.23 | 1er ronda | Keisuke Saitoh | Louis Tessa | 6-2, 4-6, 6-3 | | match details | ||
| 28.01.23 | 1/2 | Nicholas David Ionel | Keisuke Saitoh | 6-1, 7-65 | | match details | M15 Jakarta | Difícil |
| 27.01.23 | 1/4 | Keisuke Saitoh | Mitsuki Wei Kang Leong | 6-0, 4-6, 6-1 | | match details | ||
| 26.01.23 | 2da ronda | Keisuke Saitoh | Taisei Ichikawa | 6-3, 3-6, 6-2 | | match details | ||
| 24.01.23 | 1er ronda | Keisuke Saitoh | Hao Yuan Ng | 3-6, 6-3, 6-2 | | match details | ||
| 19.01.23 | 2da ronda | Sanhui Shin | Keisuke Saitoh | 5-7, 6-1, 6-1 | | match details | M15 Jakarta | Difícil |
| 18.01.23 | 1er ronda | Keisuke Saitoh | Ray Ho | 6-3, 6-1 | | match details | ||
| 22.11.22 | 1er ronda | Shintaro Imai | Keisuke Saitoh | 6-4, 6-0 | | match details | Yokkaichi Challenger | Difícil |
| 21.11.22 | calif. | Keisuke Saitoh | Marc Polmans | 5-3, Marc Polmans - retirado | | match details | ||
| 20.11.22 | c 1 | Keisuke Saitoh | Ryota Tanuma | 4-1, Ryota Tanuma - retirado | | match details | ||
| 06.11.22 | c 1 | Mukund Sasikumar | Keisuke Saitoh | 6-3, 6-2 | | match details | Matsuyama Challenger | Difícil |
| 30.10.22 | calif. | Seongchan Hong | Keisuke Saitoh | 6-2, 7-5 | | match details | Yokohama Challenger | Difícil |
| 29.10.22 | c 1 | Keisuke Saitoh | Jumpei Yamasaki | 6-2, 4-2, Jumpei Yamasaki - retirado | | match details | ||
| 10.09.22 | 1/2 | Rio Noguchi | Keisuke Saitoh | 1-6, 6-3, 6-0 | | match details | M25 Sapporo | Difícil |
| 09.09.22 | 1/4 | Keisuke Saitoh | Ryota Tanuma | 0-6, 6-4, 6-3 | | match details | ||
| 08.09.22 | 2da ronda | Keisuke Saitoh | Shunsuke Nakagawa | 6-1, 6-2 | | match details | ||
| 07.09.22 | 1er ronda | Keisuke Saitoh | Kazuki Nishiwaki | 6-3, 6-2 | | match details | ||
| 30.08.22 | 1er ronda | Daisuke Sumizawa | Keisuke Saitoh | 7-5, 3-6, 6-4 | | match details | M25 Sapporo | Difícil |
| 04.08.22 | 2da ronda | Tsung-Hao Huang | Keisuke Saitoh | 6-1, 6-0 | | match details |  M15 Kuching | Difícil |
| 02.08.22 | 1er ronda | Keisuke Saitoh | Vishnu Vardhan | 6-1, 7-5 | | match details | ||
| 30.07.22 | 1/2 | Nam Hoang Ly | Keisuke Saitoh | 6-2, 6-3 | | match details | M15 Kuala | Difícil |
| 29.07.22 | 1/4 | Keisuke Saitoh | Uisung Park | 6-3, 6-3 | | match details | ||
| 28.07.22 | 2da ronda | Keisuke Saitoh | Ching-Mou Yu | Ching-Mou Yu - walk over | | match details | ||
| 26.07.22 | 1er ronda | Keisuke Saitoh | Hao Sheng Koay | 6-3, 6-1 | | match details | ||
| 07.07.22 | 2da ronda | Guy Orly Iradukunda | Keisuke Saitoh | 6-1, 6-0 | | match details | M15 Monastir | Difícil |
| 06.07.22 | 1er ronda | Keisuke Saitoh | Egor Tsarapkin | 6-2, 6-2 | | match details | ||
| 30.06.22 | 2da ronda | Terence Atmane | Keisuke Saitoh | 6-3, 6-4 | | match details | M15 Monastir | Difícil |
| 29.06.22 | 1er ronda | Keisuke Saitoh | Chukang Wang | 6-1, 6-3 | | match details | ||
| 23.06.22 | 2da ronda | Xiaofei Wang | Keisuke Saitoh | 2-6, 6-1, 6-4 | | match details | M15 Monastir | Difícil |
| 21.06.22 | 1er ronda | Keisuke Saitoh | Gabriele Bosio | 6-4, 7-5 | | match details | ||
| 17.06.22 | 1/4 | Skander Mansouri | Keisuke Saitoh | 6-3, 6-1 | | match details | M15 Monastir | Difícil |
| 16.06.22 | 2da ronda | Keisuke Saitoh | Joshua Charlton | 4-6, 6-4, 6-3 | | match details | ||
| 14.06.22 | 1er ronda | Keisuke Saitoh | Ray Ho | 6-3, 6-4 | | match details | ||
| 06.03.22 | c 1 | Mitchell Harper | Keisuke Saitoh | 6-0, 4-6, 10-6 | | match details | M25 Bendigo | Difícil |
| 03.03.22 | 2da ronda | Yusuke Takahashi | Keisuke Saitoh | 6-2, 6-2 | | match details | M25 Bendigo | Difícil |
| 02.03.22 | 1er ronda | Keisuke Saitoh | Matthew Christopher Romios | 4-6, 6-3, 3-0, Matthew Christopher Romios - retirado | | match details | ||
| 17.02.22 | 2da ronda | Dane Sweeny | Keisuke Saitoh | 6-3, 6-4 | | match details | M25 Canberra | Difícil |
| 15.02.22 | 1er ronda | Keisuke Saitoh | Jordan Smith | 6-2, 3-6, 7-5 | | match details | ||
| 31.01.22 | c 2 | Shinji Hazawa | Keisuke Saitoh | 6-1, 6-3 | | match details | M15 Monastir | Difícil |
| 30.01.22 | c 1 | Keisuke Saitoh | Charlelie Cosnet | 1-6, 6-1, 10-6 | | match details | ||
| 28.01.22 | 1/4 | Filip Misolic | Keisuke Saitoh | 6-1, 6-4 | | match details | M25 Monastir | Difícil |
| 27.01.22 | 2da ronda | Keisuke Saitoh | Harold Mayot | 6-4, 6-4 | | match details | ||
| 26.01.22 | 1er ronda | Keisuke Saitoh | Aziz Ouakaa | 4-6, 7-5, 7-5 | | match details | ||
| 24.01.22 | calif. | Keisuke Saitoh | Florent Bax | 6-2, 6-3 | | match details | ||
| 23.01.22 | c 2 | Keisuke Saitoh | Linghao Zhang | 6-3, 6-3 | | match details | ||
| 20.01.22 | 2da ronda | Titouan Droguet | Keisuke Saitoh | 6-3, 6-0 | | match details | M25 Monastir | Difícil |
| 19.01.22 | 1er ronda | Keisuke Saitoh | Aziz Dougaz | Aziz Dougaz - walk over | | match details | ||
| 17.01.22 | calif. | Keisuke Saitoh | Alexandre Ruscica | 6-3, 7-5 | | match details | ||
| 16.01.22 | c 2 | Keisuke Saitoh | Preston Connor | 6-0, 6-1 | | match details | ||
| 01.09.21 | 1er ronda | Omni Kumar | Keisuke Saitoh | 6-4, 6-2 | | match details | M15 Monastir | Difícil |
| 31.08.21 | calif. | Keisuke Saitoh | Luis Diego Chavez Villalpando | 6-1, Luis Diego Chavez Villalpando - retirado | | match details | ||
| 30.08.21 | c 2 | Keisuke Saitoh | Stanko Lazic | 6-0, 6-0 | | match details | ||
| 29.08.21 | c 1 | Keisuke Saitoh | Michel-Alexandre Fortin | 6-3, 6-1 | | match details | ||
| 25.08.21 | 1er ronda | Jumpei Yamasaki | Keisuke Saitoh | 6-1, 6-1 | | match details | M15 Monastir | Difícil |
| 24.08.21 | calif. | Keisuke Saitoh | Rishi Reddy | 6-4, 6-3 | | match details | ||
| 23.08.21 | c 2 | Keisuke Saitoh | Bastian Alonso Utreras Santander | 6-2, 6-0 | | match details | ||
| 22.08.21 | c 1 | Keisuke Saitoh | Bryan Aguiar Kuntz | 6-4, 6-4 | | match details | ||
| 16.08.21 | c 2 | Shohei Chikami | Keisuke Saitoh | 6-4, 6-1 | | match details | M15 Monastir | Difícil |
| 15.08.21 | c 1 | Keisuke Saitoh | Alec Beckley | 6-3, 4-6, 10-4 | | match details | ||
| 11.08.21 | 1er ronda | Dane Sweeny | Keisuke Saitoh | 6-1, 6-4 | | match details | M15 Monastir | Difícil |
| 10.08.21 | calif. | Keisuke Saitoh | Masamichi Imamura | 7-61, 6-2 | | match details | ||
| 09.08.21 | c 2 | Keisuke Saitoh | Babji Siva Atturu | 6-1, 6-0 | | match details | ||
| 08.08.21 | c 1 | Keisuke Saitoh | Manuel Mouilleron Salvo | 6-3, 6-3 | | match details | ||
| 01.03.21 | c 1 | Alessandro Pecci | Keisuke Saitoh | 6-4, 7-67 | | match details |  M15 Sharm | Difícil |
| 21.02.21 | c 1 | Samuel Vincent Ruggeri | Keisuke Saitoh | 6-0, 6-1 | | match details | M15 Sharm | Difícil |
| 18.02.21 | 2da ronda | Yu Hsiou Hsu | Keisuke Saitoh | 6-1, 6-1 | | match details | M15 Sharm | Difícil |
| 17.02.21 | 1er ronda | Keisuke Saitoh | Sidharth Rawat | 7-62, 6-3 | | match details | ||
| 16.02.21 | calif. | Keisuke Saitoh | Daisuke Sumizawa | 6-2, 6-4 | | match details | ||
| 15.02.21 | c 1 | Keisuke Saitoh | Elgin Khoeblal | 6-0, 6-2 | | match details | ||
| 15.02.21 | c 2 | Keisuke Saitoh | Chien-Hsun Lo | 6-4, 6-4 | | match details | ||
| 11.02.21 | 2da ronda | Nicolas Moreno De Alboran | Keisuke Saitoh | 6-4, 6-4 | | match details | M15 Sharm | Difícil |
| 10.02.21 | 1er ronda | Keisuke Saitoh | Fares Zakaria | 6-2, 6-2 | | match details | ||
| 09.02.21 | calif. | Keisuke Saitoh | Aidan Mchugh | 6-1, 6-4 | | match details | ||
| 08.02.21 | c 2 | Keisuke Saitoh | Francesco Passaro | 6-3, 7-62 | | match details | ||
| 08.02.21 | c 1 | Keisuke Saitoh | Erbol Eldiyar Uulu | 6-3, 6-3 | | match details | ||
| 02.02.21 | calif. | Roman Andres Burruchaga | Keisuke Saitoh | 6-2, 6-3 | | match details | M15 Sharm | Difícil |
| 01.02.21 | c 1 | Keisuke Saitoh | Vladimir Uzhylovsky | 6-4, 6-3 | | match details | ||
| 01.02.21 | c 2 | Keisuke Saitoh | Mate Valkusz | 6-2, 6-2 | | match details | ||
| 09.11.20 | c 2 | Arjun Kadhe | Keisuke Saitoh | 7-65, 6-1 | | match details | M15 Sharm | Difícil |
| 08.11.20 | c 1 | Keisuke Saitoh | Bekkhan Atlangeriev | 6-0, 6-3 | | match details | ||
| 05.11.20 | 2da ronda | David Poljak | Keisuke Saitoh | 6-3, 6-4 | | match details | M15 Sharm | Difícil |
| 04.11.20 | 1er ronda | Keisuke Saitoh | Raphael Collignon | 6-3, 6-3 | | match details | ||
| 03.11.20 | calif. | Keisuke Saitoh | Petr Michnev | 7-5, 2-6, 10-8 | | match details | ||
| 02.11.20 | c 2 | Keisuke Saitoh | Erik Crepaldi | 7-62, 6-0 | | match details | ||
| 02.11.20 | c 1 | Keisuke Saitoh | Denis Parshutin | 6-2, 6-0 | | match details | ||
| 02.02.20 | c 1 | Yuki Mochizuki | Keisuke Saitoh | 6-3, 6-0 | | match details | M25 Nonthaburi | Difícil |
| 27.01.20 | c 2 | Ben Patael | Keisuke Saitoh | 6-3, 6-2 | | match details | M25 Nonthaburi | Difícil |
| 26.01.20 | c 1 | Keisuke Saitoh | Thanapet Chanta | 6-4, 2-6, 10-8 | | match details | ||
| 03.12.19 | 1er ronda | Makoto Ochi | Keisuke Saitoh | 6-2, 6-2 | | match details | M15 Nonthaburi | Difícil |
| 29.11.19 | 1/4 | Duckhee Lee | Keisuke Saitoh | 6-2, 6-1 | | match details | M15 Nonthaburi | Difícil |
| 28.11.19 | 2da ronda | Keisuke Saitoh | Rio Noguchi | 7-5, 7-66 | | match details | ||
| 27.11.19 | 1er ronda | Keisuke Saitoh | Ryota Tanuma | 6-2, 7-62 | | match details | ||
| 02.09.19 | 1er ronda | Dalibor Svrcina | Keisuke Saitoh | 6-1, 6-1 | | match details | U.S. Open | Difícil |
| 04.04.19 | 2da ronda | Yusuke Takahashi | Keisuke Saitoh | 6-2, 6-1 | | match details | M15 Kashiwa | Difícil |
| 03.04.19 | 1er ronda | Keisuke Saitoh | Takashi Saito | 6-1, 2-0, Takashi Saito - retirado | | match details | ||
| 19.03.19 | 1er ronda | Jumpei Yamasaki | Keisuke Saitoh | 6-2, 6-3 | | match details | M15 Kofu | Difícil |
| 13.03.19 | 1er ronda | Shuichi Sekiguchi | Keisuke Saitoh | 6-3, 6-2 | | match details | M15 Nishi | Difícil |
| 08.03.19 | 2da ronda | Seongchan Hong | Keisuke Saitoh | 6-3, 6-0 | | match details | M15 Nishi | Difícil |
| 06.03.19 | 1er ronda | Keisuke Saitoh | Soichiro Moritani | 6-2, 6-0 | | match details | ||
| 20.01.19 | 1er ronda | Emilio Nava | Keisuke Saitoh | 6-4, 6-2 | | match details | Australian Open | Difícil |