Round: 26 Ground: Hardcourt outdoor
| ITF Poland F5 | 2017/07/12 11:45 | Laurynas Grigelis v Agustin Velotti | 7-6,6-3 |
| ITF Poland F4 | 2017/07/09 11:30 | Laurynas Grigelis v Alexei Popyrin | 3-6,6-3,3-6 |
| ITF Poland F4 | 2017/07/08 11:35 | Laurynas Grigelis v Billy Harris | 6-2,6-4 |
| ITF Poland F4 | 2017/07/07 11:05 | Laurynas Grigelis v Samuel Bensoussan | 6-2,6-1 |
| ITF Poland F4 | 2017/07/06 11:00 | Laurynas Grigelis v Ewan Moore | 6-3,6-2 |
| ITF Poland F4 | 2017/07/04 10:30 | Laurynas Grigelis v Karol Drzewiecki | 6-2,6-1 |
| Challenger Milan | 2017/06/27 11:10 | Marco Cecchinato v Laurynas Grigelis | 5-7,7-5,7-6 |
| Challenger Todi | 2017/06/22 14:55 | Laurynas Grigelis v Liam Caruana | 5-7,3-6 |
| ITF Poland F5 | 2017/07/12 10:30 | Thibault Cancel v Szymon Walkow | 2-6,7-6,6-1 |
| ITF Poland F5 Qual | 2017/07/10 09:20 | Oleg Prihodko v Thibault Cancel | 4-6,7-6,6-7 |
| ITF Poland F5 Qual | 2017/07/08 07:00 | Adam Rudowski v Thibault Cancel | 1-6,0-6 |
| ITF Poland F4 | 2017/07/07 09:00 | Thibault Cancel v Alexei Popyrin | 3-6,6-7 |
| ITF Poland F4 | 2017/07/05 15:30 | Maciej Rajski v Thibault Cancel | 0-6,2-6 |
| ITF Poland F4 | 2017/07/04 17:05 | Kamil Gajewski v Thibault Cancel | 5-7,6-4,3-6 |
| ITF Poland F4 Qual | 2017/07/02 13:00 | Konrad Mularczyk v Thibault Cancel | 2-6,6-7 |
| ITF Poland F4 Qual | 2017/07/01 12:30 | Thibault Cancel v Mislav Bosnjak | 6-1,6-4 |