Stadium: Court 1 Round: 25 Ground: Clay
| US Open, New York, USA, Qualifying | 2017/08/23 17:40 | Lacko, Lukas v Grigelis, Laurynas | 6-3,6-4 |
| Challenger Liberec | 2017/08/04 12:00 | Safranek, Vaclav v Grigelis, Laurynas | 6-7,6-1,6-3 |
| Challenger Liberec | 2017/08/03 14:40 | Grigelis, Laurynas v Stebe, Cedrik-Marcel | 6-4,3-6,6-3 |
| Challenger Liberec | 2017/08/01 14:40 | Grigelis, Laurynas v Bellotti, Riccardo | 7-6,7-6 |
| ITF Lithuania F1 | 2017/07/19 13:25 | Grigelis, Laurynas v Brydolf, Patrik | 3-6,6-7 |
| ITF Lithuania F1 | 2017/07/18 12:45 | Grigelis, Laurynas v Numajiri, Keisuke | 6-1,6-3 |
| ITF Poland F5 | 2017/07/15 10:55 | Grigelis, Laurynas v Antonio Massara | 6-1,6-2 |
| ITF Poland F5 | 2017/07/14 12:20 | Grigelis, Laurynas v Pawel Juszczak | 6-7,6-3,6-2 |
| ITF Romania F11 | 2017/08/24 08:30 | Merino, Alexander v Dima, Dragos | 5-7,1-6 |
| ITF Romania F11 | 2017/08/23 06:30 | Cozma, Daniel v Merino, Alexander | 3-6,4-6 |
| ITF Romania F11 Qual | 2017/08/21 11:00 | Merino, Alexander v Vlad Andrei Dancu | 6-3,7-6 |
| ITF Romania F11 Qual | 2017/08/21 06:00 | Merino, Alexander v Bobleaga, Razvan | 6-4,6-1 |
| ITF Finland F3 | 2017/08/15 07:00 | Solberg, Christoffer v Merino, Alexander | 6-2,6-1 |
| ITF Finland F2 | 2017/08/08 07:00 | Merino, Alexander v Baldi, Filippo | 3-6,5-7 |
| ITF Colombia F3 | 2017/08/01 20:40 | Merino, Alexander v Panta Herreros, Jorge Brian | 3-6,5-7 |
| ITF Colombia F3 Qual | 2017/07/31 15:00 | Merino, Alexander v Luis Britto | 6-0,6-3 |