Stadium: Court 4 Round: 26 Ground: Hardcourt outdoor
| Yinchuan, Simples M-ITF-CHN-11A | 2019/06/28 01:30 | Chen, Liran v Gao, Xin | 4-6,2-6 |
| Hong Kong, Simples M-ITF-HKG-04A | 2019/06/14 02:00 | Shintaro Imai v Gao, Xin | 6-4,6-7,6-3 |
| Hong Kong, Simples M-ITF-HKG-04A | 2019/06/13 03:45 | Tikhomirov, Maksim v Gao, Xin | 6-7,1-6 |
| Hong Kong, Simples M-ITF-HKG-04A | 2019/06/11 08:15 | Gao, Xin v Blake Ellis | 7-6,6-4 |
| Hong Kong, Simples M-ITF-HKG-04A | 2019/06/06 02:00 | Sekiguchi, Shuichi v Gao, Xin | 6-3,6-1 |
| Hong Kong, Simples M-ITF-HKG-04A | 2019/06/05 02:30 | Tikhomirov, Maksim v Gao, Xin | 6-4,1-6,1-6 |
| Luzhou, Simples M-ITF-CHN-07A | 2019/05/31 02:00 | He, Yecong v Gao, Xin | 6-3,6-4 |
| Luzhou, Simples M-ITF-CHN-07A | 2019/05/30 04:30 | Xia, Haitong v Gao, Xin | 1-6,2-6 |
| Yinchuan, Simples M-ITF-CHN-11A | 2019/06/28 03:35 | Mingzhou, Zhou v Shinji Hazawa | 4-6,2-6 |
| Matsuyama, Singles M-ITF-JPN-06A | 2019/04/10 03:30 | Yuki Mochizuki v Shinji Hazawa | 6-0,6-2 |
| ITF - M15 Kashiwa | 2019/04/04 02:40 | Shinji Hazawa v Makoto Ochi | 2-6,1-6 |
| ITF - M15 Kashiwa | 2019/04/03 01:55 | Shinji Hazawa v Sora Fukuda | 6-1,5-7,6-1 |
| ITF - M15 Tsukuba | 2019/03/26 02:15 | Shinji Hazawa v Kuan-Yi Lee | 3-6,4-6 |
| Kofu, Qualifications Simples M-ITF-JPN-03A | 2019/03/19 02:35 | Shinji Hazawa v Sho Shimabukuro | 3-6,3-6 |
| ITF - M15 Nishi-Tokyo | 2019/03/12 04:45 | Sho Shimabukuro v Shinji Hazawa | 6-3,6-7,6-2 |
| Nishi-Tama, Simples M-ITF-JPN-01A | 2019/03/05 05:25 | Naoki Tajima v Shinji Hazawa | 7-5,6-3 |