Stadium: Court A Round: 44 Ground: Hardcourt outdoor
| Tay Ninh, Singles Qualifying M-ITF-VIE-02A | 2019/10/07 02:00 | Daisuke Sumizawa v Jagmeet Singh | 6-1,6-0 |
| Nanchang, Singles M-ITF-CHN-16A | 2019/10/03 03:40 | Wang, Chukang v Daisuke Sumizawa | 6-4,2-6,6-4 |
| Nanchang, Singles M-ITF-CHN-16A | 2019/10/02 08:30 | Chandrasekar, Anirudh v Daisuke Sumizawa | 6-3,2-6,1-6 |
| Nanchang, Singles M-ITF-CHN-16A | 2019/09/24 06:50 | Daisuke Sumizawa v Ivanov, Vladimir | 2-6,2-6 |
| Nonthaburi, Singles M-ITF-THA-01A | 2019/07/31 06:20 | Marsel Ilhan v Daisuke Sumizawa | 6-4,6-2 |
| Nonthaburi, Singles M-ITF-THA-01A | 2019/07/30 02:30 | Daisuke Sumizawa v Green, Cameron | 6-4,5-7,10-8 |
| Nonthaburi, Singles M-ITF-THA-01A | 2019/07/29 05:00 | Daisuke Sumizawa v Ng, Hao Yuan | 2-6,6-3,10-6 |
| Nonthaburi, Singles M-ITF-THA-01A | 2019/07/24 02:00 | Daisuke Sumizawa v Sergey Fomin | 3-6,1-6 |
| Tay Ninh, Singles Qualifying M-ITF-VIE-02A | 2019/10/07 02:00 | Vo, Quoc Uy v Gao, Qun | 2-6,2-6 |
| Tay Ninh, Singles Qualifying M-ITF-VIE-02A | 2019/10/06 03:30 | Vu, Kacper Long v Gao, Qun | 2-6,2-6 |
| ITF M25 Tay Ninh | 2019/10/01 04:25 | Gao, Qun v Arthur Weber | 1-6,6-2,5-10 |
| ITF M25 Tay Ninh | 2019/09/30 06:10 | Gao, Qun v Wang, Kaiwei | 6-1,6-0 |
| ITF M15 Novi Sad | 2019/08/05 08:00 | Khomentovskiy, Matvey v Gao, Qun | 6-3,6-3 |
| Shenzhen, Simples M-ITF-CHN-09A | 2019/06/10 06:55 | Bingyu Yu v Gao, Qun | 6-4,5-7,10-7 |
| Luzhou, Simples M-ITF-CHN-07A | 2019/05/29 01:55 | Gao, Qun v Dong, Bohua | 6-4,6-2 |
| Luzhou, Simples M-ITF-CHN-07A | 2019/05/28 03:35 | Ye Cong Mo v Gao, Qun | 7-6,3-6,2-10 |