Stadium: Court 3 Round: 25 Ground: Hardcourt outdoor
| ITF - M15 Sharm El Sheikh | 2020/02/08 08:00 | Vivero Gonzalez, Pablo v Marek Gengel | 5-7,3-6 |
| ITF - M15 Sharm El Sheikh | 2020/02/07 08:00 | Vivero Gonzalez, Pablo v Andrea Picchione | 6-2,6-4 |
| ITF - M15 Sharm El Sheikh | 2020/02/06 09:30 | Vivero Gonzalez, Pablo v Yitbarek, Simon | 7-5,7-5 |
| ITF - M15 Sharm El Sheikh | 2020/02/05 09:35 | Vivero Gonzalez, Pablo v Shumeiko, Pavel | 6-0,6-0 |
| ITF - M15 Héraklion | 2019/12/13 08:30 | Vivero Gonzalez, Pablo v Alexander Donski | 6-1,6-2 |
| ITF - M15 Héraklion | 2019/12/12 09:00 | Vivero Gonzalez, Pablo v Domagoj Biljesko | 6-2,6-1 |
| ITF - M15 Héraklion | 2019/12/11 07:55 | Vivero Gonzalez, Pablo v Moroni, Filippo | 6-3,6-2 |
| ITF - M15 Héraklion | 2019/12/04 08:00 | Vivero Gonzalez, Pablo v Dzhanashia, Shalva | 1-6,5-7 |
| ITF - M15 Sharm El Sheikh | 2020/02/11 08:00 | Uzhylovsky, Vladimir v Piotr Grynkowski | 6-4,6-4 |
| ITF - M15 Sharm El Sheikh | 2020/02/10 09:00 | Ernaelsteen, Victor v Piotr Grynkowski | 2-6,2-6 |
| ITF - M15 Sharm El Sheikh | 2020/02/09 10:00 | Hiramatsu, Shinnosuke v Piotr Grynkowski | 3-6,0-6 |
| Milovice, Singles M-ITF-CZE-10A | 2019/11/14 13:45 | Piotr Grynkowski v Vadym Ursu | 2-6,1-6 |
| Milovice, Singles M-ITF-CZE-10A | 2019/11/13 09:00 | Piotr Grynkowski v Samuel Puskar | 6-3,6-0 |
| Milovice, Singles M-ITF-CZE-10A | 2019/11/12 10:30 | Piotr Grynkowski v Jiri Barnat | 6-4,6-4 |
| Milovice, Singles M-ITF-CZE-10A | 2019/11/11 09:00 | Piotr Grynkowski v Patzanovsky, Christopher | 6-1,2-6,10-5 |
| ITF M15 Opava | 2019/10/30 09:00 | Piotr Grynkowski v Pospisil, Jaroslav | 6-7,0-6 |