Stadium: C Round: 27
| ITF Singapore F1 | 2018/05/16 04:20 | Kaito Uesugi v Tom Evans | 6-2,6-4 |
| ITF Singapore F1 | 2018/05/14 02:00 | Kaito Uesugi v Wei-De Lin | 6-3,6-2 |
| ITF China F5 | 2018/05/11 05:00 | Kaito Uesugi v Harri Heliovaara | 1-6,2-6 |
| ITF China F5 | 2018/05/10 06:15 | Xin Gao v Kaito Uesugi | 7-6,5-7,3-6 |
| ITF China F5 | 2018/05/09 02:00 | Kaito Uesugi v Yecong He | 6-3,5-7,7-5 |
| ITF Japan F6 | 2018/04/10 05:10 | Kaito Uesugi v Sora Fukuda | 5-7,5-7 |
| ITF Japan F6 Qual | 2018/04/09 01:00 | Kaito Uesugi v Takuya Kumasaka | 6-3,6-1 |
| ITF Japan F6 Qual | 2018/04/08 01:00 | Kaito Uesugi v Ko Suzuki | 7-6,6-4 |
| ITF Singapore F1 | 2018/05/16 02:00 | Shunrou Takeshima v Thai-Son Kwiatkowski | 4-6,6-4,2-6 |
| ITF Singapore F1 | 2018/05/15 04:25 | Michael Look v Thai-Son Kwiatkowski | 0-6,5-7 |
| Challenger Marbella Qual | 2018/03/24 09:15 | Marco Trungelliti v Thai-Son Kwiatkowski | 6-7,7-5,6-1 |
| Challenger Dallas | 2018/01/30 19:55 | Thai-Son Kwiatkowski v Reilly Opelka | View |
| Challenger Newport Beach | 2018/01/24 21:45 | Taylor Fritz v Thai-Son Kwiatkowski | 6-4,6-4 |
| Challenger Newport Beach | 2018/01/22 21:15 | Marcelo Arevalo v Thai-Son Kwiatkowski | 4-6,4-6 |
| ITF Mexico F7 | 2017/12/02 17:00 | Thai-Son Kwiatkowski v Marc-Andrea Huesler | 3-6,4-6 |
| ITF Mexico F7 | 2017/12/01 17:00 | Ronnie Schneider v Thai-Son Kwiatkowski | 3-6,3-6 |