Stadium: Court 4 Round: 26 Ground: Clay
| ITF M15 Sofia | 2021/07/06 07:00 | Hanwen Li v Felix Gill | 6-4,2-6,6-3 |
| ITF M15 Antalya | 2021/07/01 06:30 | Marsel Ilhan v Hanwen Li | 6-1,6-2 |
| ITF M15 Antalya | 2021/06/30 06:30 | Hanwen Li v Stefanos Sakellaridis | 6-1,6-2 |
| ITF M15 Skopje | 2021/06/10 08:30 | Hanwen Li v Ronan Joncour | 3-6,2-6 |
| ITF M15 Skopje | 2021/06/09 09:00 | Hanwen Li v Plamen Milushev | 6-4,6-7,6-4 |
| ATP Geneva | 2021/05/15 08:00 | Ilya Ivashka v Hanwen Li | 6-0,6-3 |
| ITF M15 Cairo | 2021/05/05 09:45 | Hanwen Li v Kai Wehnelt | 3-6,4-6 |
| ITF M15 Cairo | 2021/04/28 12:00 | Juan Pablo Paz v Hanwen Li | 7-5,6-2 |
| ITF M15 Sofia | 2021/07/07 10:45 | Simon A Ivanov v Marko Miladinovic | 7-5,6-1 |
| ITF M15 Novomoskovsk | 2021/05/31 06:15 | Simon A Ivanov v Bruno P Navarro | 4-6,4-6 |
| ITF M15 Novomoskovsk | 2021/05/31 06:15 | Simon A Ivanov v Svyatoslav Ilnytskyy | 6-1,6-3 |
| ITF M15 Novomoskovsk | 2021/05/30 06:15 | Simon A Ivanov v Lorenzo Vatteroni | 6-1,6-2 |
| ITF M15 Novomoskovsk | 2021/05/25 07:00 | Simon A Ivanov v Timur Maulenov | 6-4,5-7,7-10 |
| ITF M15 Novomoskovsk | 2021/05/24 12:00 | Simon A Ivanov v Denis Constantin Spiridon | 7-6,6-1 |
| ITF M15 Novomoskovsk | 2021/05/23 08:00 | Simon A Ivanov v Leyton Rivera | 6-4,6-2 |
| ITF M15 Cairo | 2021/05/08 11:05 | Simon A Ivanov v Oliver Crawford | 7-5,6-4 |