Stadium: Court 2 Round: 25 Ground: Clay
| 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 Antalya | 2019/05/10 09:35 | Piotr Grynkowski v Max Houkes | 2-6,1-6 |
| ITF M15 Antalya | 2019/05/09 09:05 | Piotr Grynkowski v Matthew Dellavedova | 6-2,6-3 |
| ITF M15 Antalya | 2019/05/08 10:00 | Paul Woerner v Piotr Grynkowski | 7-6,3-6,5-7 |
| ITF M15 Antalya | 2019/05/07 07:15 | Piotr Grynkowski v Giordan Kunz | 6-2,6-3 |
| ITF M15 Casablanca | 2019/07/23 09:00 | Guido Ivan Justo v Nicolas Alberto Arreche | 6-4,6-4 |
| ITF M15 Tabarka | 2019/07/20 09:00 | Enrico Dalla Valle v Nicolas Alberto Arreche | 6-3,6-2 |
| ITF M15 Tabarka | 2019/07/19 12:25 | Simone Roncalli v Nicolas Alberto Arreche | 4-6,0-6 |
| ITF M15 Tabarka | 2019/07/18 10:00 | Max Houkes v Nicolas Alberto Arreche | 5-7,2-6 |
| ITF M15 Tabarka | 2019/07/17 13:15 | Egor Noskin v Nicolas Alberto Arreche | 6-3,2-6,2-6 |
| ITF M15 Tabarka | 2019/07/13 08:00 | Enrico Dalla Valle v Nicolas Alberto Arreche | 7-5,7-6 |
| ITF M15 Tabarka | 2019/07/12 10:20 | Nicolas Alberto Arreche v Lukas H Lilleengen | 6-0,6-1 |
| ITF M15 Tabarka | 2019/07/11 08:00 | Nicolas Alberto Arreche v Manfred Fellin | 6-4,6-2 |