| ITF M25 - Nonthaburi | 01/29 06:15 | 25 | Yuki Mochizuki v Shintaro Imai | 4-6,2-6 | |
| ITF M15 - Nonthaburi | 12/01 02:55 | 29 | [250] Duckhee Lee v Shintaro Imai [307] | 6-1,6-4 | |
| ITF M15 - Nonthaburi | 11/30 03:00 | 28 | [307] Shintaro Imai v Ji Sung Nam [252] | 7-6,7-6 | |
| ITF M15 - Nonthaburi | 11/29 04:25 | 27 | Benjamin Pietri v Shintaro Imai | 2-6,1-6 | |
| ITF M15 - Nonthaburi | 11/28 04:40 | 26 | Jea Moon Lee v Shintaro Imai | 0-6,6-1,6-7 | |
| ITF M15 - Nonthaburi | 11/26 07:10 | 25 | Kento Takeuchi v Shintaro Imai | 3-6,2-6 | |
| Challenger - Kobe | 11/09 05:45 | 28 | [370] Shintaro Imai v Yuichi Sugita [107] | 3-6,6-4,1-6 | |
| Challenger - Kobe | 11/08 04:30 | 27 | [219] Hiroki Moriya v Shintaro Imai [370] | 3-6,6-7 | |
| Challenger - Kobe | 11/07 03:40 | 26 | [370] Shintaro Imai v Renta Tokuda [467] | 3-6,6-3,6-2 | |
| Challenger - Kobe | 11/05 02:50 | 25 | [255] Duckhee Lee v Shintaro Imai [370] | 4-6,2-6 | |
| Challenger - Kobe | 11/04 07:00 | 24 | Shintaro Imai v Seita Watanabe | 6-4,6-2 | |
| Challenger Ningbo | 10/14 05:55 | 24 | Shintaro Imai v Fajing Sun | 4-6,4-6 | |
| ITF M25 - Tay Ninh | 10/08 03:45 | 25 | Naoki Nakagawa v Shintaro Imai | 6-2,6-1 | |
| Challenger Kaohsiung | 09/16 06:30 | 24 | [325] Shintaro Imai v Renta Tokuda [447] | 3-6,4-6 | |
| Challenger - Shanghai | 09/09 06:25 | 24 | [160] Arjun Kadhe v Shintaro Imai [323] | 7-6,6-3 | |
| Challenger Jinan | 09/02 03:40 | 24 | [323] Shintaro Imai v Chun Hsin Tseng [357] | 5-7,6-4,2-6 | |
| Challenger - Yokkaichi | 08/08 04:05 | 26 | [346] Shintaro Imai v James Duckworth [158] | 2-6,3-6 | |
| Challenger - Yokkaichi | 08/06 02:50 | 25 | [473] Nam Hoang Ly v Shintaro Imai [346] | 6-2,2-6,3-6 | |
| Challenger - Yokkaichi | 08/05 05:05 | 24 | Shintaro Imai v Naoki Tajima | 6-2,6-3 | |
| ITF M25 - Nonthaburi | 08/03 04:35 | 28 | [397] Renta Tokuda v Shintaro Imai [468] | 6-4,7-5 | |
| ITF M25 - Nonthaburi | 08/02 03:00 | 27 | [468] Shintaro Imai v Sergey Fomin [452] | 6-2,6-7,6-4 | |
| ITF M25 - Nonthaburi | 08/01 04:55 | 26 | Shintaro Imai v Grigoriy Lomakin | 6-2,6-1 | |
| ITF M25 - Nonthaburi | 07/30 05:20 | 25 | Shintaro Imai v Seong-Gook Oh | 6-2,6-2 | |
| Challenger Gatineau | 07/16 18:35 | 25 | [475] Shintaro Imai v Soonwoo Kwon [115] | 2-6,3-6 | |
| Challenger Gatineau | 07/15 14:50 | 24 | [476] Shintaro Imai v Alejandro Tabilo [310] | 6-4,2-6,7-5 | |
| Challenger - Winnipeg | 07/10 20:25 | 25 | [491] Shintaro Imai v Antoine Hoang [103] | 6-7,5-7 | |
| Challenger - Winnipeg | 07/10 15:00 | 24 | [369] Jacob Grills v Shintaro Imai [491] | 7-6,6-7,0-6 | |
| ITF M25 Hengyang | 06/21 02:00 | 27 | [498] Shintaro Imai v Harry Bourchier [407] | 4-6,3-6 | |
| ITF M25 Hengyang | 06/20 03:40 | 26 | Shintaro Imai v Aliaksandr Liaonenka | 7-5,6-1 | |
| ITF M25 Hengyang | 06/19 04:35 | 25 | Shintaro Imai v Li-Wei Tan | 6-4,6-0 |