Stadium: Court 5 Round: 25 Ground: Hardcourt outdoor
| ITF M15 Kiryat Shmona | 2019/08/21 13:40 | Sahar Simon v Piotr Grynkowski | 3-6,6-4,7-5 |
| ITF M25 Bydgoszcz | 2019/08/13 12:00 | Denis Yevseyev v Piotr Grynkowski | 4-6,6-2,6-1 |
| ITF M15 Ystad | 2019/08/07 08:15 | Adam Heinonen v Piotr Grynkowski | 2-6,6-3,7-5 |
| ITF M15 Agadir | 2019/07/30 10:00 | Piotr Grynkowski v Nicolas Alberto Arreche | 4-6,1-6 |
| ITF M15 Wroclaw | 2019/07/02 08:00 | Piotr Grynkowski v Martins Rocens | 3-6,6-1,10-3 |
| ITF M15 Wroclaw | 2019/07/01 08:00 | Piotr Grynkowski v Daniil Tsebrenko | 6-1,7-5 |
| ITF M15 Netanya | 2019/06/19 09:20 | Piotr Grynkowski v Kento Yamada | 6-3,6-3 |
| ITF M25 Jablonec Nad Nisou | 2019/05/20 09:00 | Danylo Kalenichenko v Piotr Grynkowski | 6-1,6-0 |
| ITF M15 Sajur | 2019/09/03 07:00 | Joshua Luck v Sergey Bolotov | 4-6,6-4,3-10 |
| ITF M15 Minsk | 2019/08/20 07:15 | Sergey Bolotov v Anney Laska | 6-4,3-6,5-10 |
| ITF M15 Minsk | 2019/08/19 12:20 | Sergey Bolotov v Kaysar Bekimov | 6-2,6-2 |
| ITF M15 Tabarka | 2019/08/12 14:30 | Sergey Bolotov v Miguel Fernando Pereira | 6-7,4-6 |
| ITF M15 Tabarka | 2019/08/05 15:00 | Sergey Bolotov v Daniele Capecchi | 3-6,5-7 |
| ITF M15 Tabarka | 2019/08/05 07:30 | Sergey Bolotov v Kevin Portmann | 6-1,6-0 |
| ITF M15 Almaty | 2019/07/10 04:00 | Sagadat Ayap v Sergey Bolotov | 6-1,6-2 |
| ITF M15 Almaty | 2019/07/08 04:00 | Sergey Bolotov v Roman Nashatyrkin | 6-2,6-2 |