Estadio: Court 3 Round: 54 Ground: Hardcourt indoor
| ITF M15 Trnava | 2020/02/24 14:00 | Mikalai Haliak v Isa Mammetgulyyev | 3-6,7-6,3-10 |
| Copa Davis | 2019/09/14 08:20 | Adel M Al-Saedi v Isa Mammetgulyyev | 0-6,0-6 |
| Copa Davis | 2019/09/12 08:00 | Isa Mammetgulyyev v Christopher Cajigan | 6-0,6-0 |
| Copa Davis | 2019/09/11 08:35 | Mousa Alkotop v Isa Mammetgulyyev | 6-7,2-6 |
| ITF M25 Gyor | 2019/08/28 12:05 | Isa Mammetgulyyev v Diego Hidalgo | 1-6,0-6 |
| ITF M25 Gyor | 2019/08/27 08:00 | Filip Maric v Isa Mammetgulyyev | 4-6,1-6 |
| ITF M15 Baja | 2019/08/15 08:00 | Daniel Vrba v Isa Mammetgulyyev | 6-3,6-1 |
| ITF M15 Wels | 2019/07/24 10:00 | Wilson Leite v Isa Mammetgulyyev | 6-1,6-2 |
| ITF M15 Trnava | 2020/02/24 14:00 | Jiri Barnat v Piotr Grynkowski | 3-6,2-6 |
| ITF M15 Sharm El Sheikh | 2020/02/19 15:40 | Issei Okamura v Piotr Grynkowski | 6-3,7-5 |
| ITF M15 Sharm El Sheikh | 2020/02/18 09:30 | Piotr Grynkowski v Iancu-Iustinian Ghinda | 6-2,6-3 |
| ITF M15 Sharm El Sheikh | 2020/02/17 09:00 | Piotr Grynkowski v Ken Onishi | 6-1,6-4 |
| ITF M15 Sharm El Sheikh | 2020/02/12 08:00 | Pablo Vivero Gonzalez v Piotr Grynkowski | 6-3,6-3 |
| ITF M15 Sharm El Sheikh | 2020/02/11 08:00 | Volodymyr Uzhylovskyi v Piotr Grynkowski | 6-4,6-4 |
| ITF M15 Sharm El Sheikh | 2020/02/10 09:00 | Victor Ernaelsteen v Piotr Grynkowski | 2-6,2-6 |
| ITF M15 Sharm El Sheikh | 2020/02/09 10:00 | Shinnosuke Hiramatsu v Piotr Grynkowski | 3-6,0-6 |