Stadium: Court 3 Round: 26 Ground: Hardcourt outdoor
| ITF China F11 | 2017/07/05 02:00 | Gao, Xin v Singh, Karunuday | 3-6,2-6 |
| ITF - M25 Luan | 2019/05/15 08:15 | Gao, Xin v Ye Cong Mo | 6-4,6-4 |
| Wuhan, Qualifications Simples M-ITF-CHN-05A | 2019/05/08 02:00 | Gao, Xin v Fajing Sun | 1-6,6-2,4-6 |
| Wuhan, Singles Qualifying M-ITF-CHN-04A | 2019/05/01 03:50 | Gao, Xin v Kazuki Nishiwaki | 6-2,3-6,3-6 |
| Nanchang, China | 2019/04/22 04:35 | Patael, Ben v Gao, Xin | 6-1,6-4 |
| Anning, China | 2019/04/15 10:10 | Gao, Xin v Viola, Matteo | 3-6,1-6 |
| Zhangjiagang, China | 2019/03/18 05:40 | Gao, Xin v Wu, Di | 5-7,4-6 |
| Challenger Zhuhai | 2019/03/04 07:05 | Gao, Xin v Alex Molcan | 5-7,4-6 |
| ITF M25 Glasgow | 2019/02/18 18:05 | Gao, Xin v Alexander Ritschard | 4-6,2-6 |
| ITF - M25 Luan | 2019/05/15 03:25 | Zeng, Shi Hong v Singh, Karunuday | 3-6,3-6 |
| Wuhan, Qualifications Simples M-ITF-CHN-05A | 2019/05/07 02:00 | Singh, Karunuday v Wang, Chukang | 6-7,3-6 |
| Wuhan, Qualifications Simples M-ITF-CHN-05A | 2019/05/06 07:05 | Singh, Karunuday v Natthasith Kunsuwan | 6-4,6-2 |
| Wuhan, Singles Qualifying M-ITF-CHN-04A | 2019/05/01 06:00 | Singh, Karunuday v Sho Shimabukuro | 3-6,3-6 |
| Mornington, Singles Qualifying M-ITF-AUS-04A | 2019/03/27 00:35 | Grills, Jacob v Singh, Karunuday | 6-3,7-5 |
| Mornington, Singles Qualifying M-ITF-AUS-04A | 2019/03/21 23:00 | Luca Castelnuovo v Singh, Karunuday | 7-6,7-6 |
| Mornington, Singles Qualifying M-ITF-AUS-04A | 2019/03/21 01:00 | Vuradin, Lucas v Singh, Karunuday | 6-2,6-7,3-6 |
| Mornington, Singles Qualifying M-ITF-AUS-04A | 2019/03/20 05:05 | Singh, Karunuday v Nick Chappell | 6-4,6-4 |