| Coupe Davis | 2021/09/15 07:00 | Linh Giang Trinh v Clement Mainguy | 4-6,6-3,7-5 |
| Coupe Davis | 2020/03/07 11:20 | Benchakroun, Aissa v Linh Giang Trinh | 2-6,6-3,10-4 |
| ITF M25 Tay Ninh | 2019/10/09 03:30 | Linh Giang Trinh v Billy Harris | 3-6,1-6 |
| ITF M25 Tay Ninh | 2019/10/01 03:30 | Yusuke Takahashi v Linh Giang Trinh | 6-1,6-4 |
| Coupe Davis | 2019/06/29 02:30 | Linh Giang Trinh v Makzoume, Yacoub | 7-6,7-6 |
| Coupe Davis | 2019/06/28 02:30 | Linh Giang Trinh v Maqdes, Abdullah | 6-3,7-5 |
| Coupe Davis | 2019/06/27 02:30 | Linh Giang Trinh v Shaheed Alam | 6-2,6-1 |
| Coupe Davis | 2019/06/26 02:30 | Linh Giang Trinh v Thangarajah, Dineshkanthan | 6-2,6-3 |
| Coupe Davis | 2021/09/17 07:00 | Mubarak, Abdulhamid v Koay, Hao Sheng | 7-5,2-6,4-6 |
| Coupe Davis | 2021/09/15 06:55 | Coleman Wong v Koay, Hao Sheng | 6-3,6-1 |
| ITF - M15 Monastir | 2021/09/05 11:00 | Koay, Hao Sheng v Johannes Ingildsen | 6-3,6-7,3-10 |
| ITF - M15 Monastir | 2021/08/29 10:30 | Koay, Hao Sheng v Chavez Villalpando, Luis Diego | 4-6,6-4,9-11 |
| Coupe Davis | 2017/07/21 05:30 | Koay, Hao Sheng v Ali Mutawa, Jabor Mohammed | 6-7,6-1,4-6 |
| ITF Sri Lanka F2 | 2017/06/27 03:00 | Samaha, Giovani v Koay, Hao Sheng | 6-3,6-2 |
| Sri Lanka F1, Singles Qualifying | 2017/06/20 03:30 | Dzhavakian, Yurii v Koay, Hao Sheng | 6-4,6-1 |
| Sri Lanka F1, Singles Qualifying | 2017/06/18 04:00 | Sood, Chandril v Koay, Hao Sheng | 6-3,6-7,3-6 |