Round: 26 Ground: Hardcourt indoor
| ITF Great Britain F2 | 2017/02/07 13:40 | Grigelis, Laurynas v Roumane, Rayane | 6-4,6-2 |
| Coupe Davis | 2017/02/05 10:00 | Grigelis, Laurynas v Rakotondramanga, Antso | 6-4,7-6,6-4 |
| Coupe Davis | 2017/02/03 14:00 | Grigelis, Laurynas v Lucas Andriamasilalao | 6-1,6-2,6-4 |
| ITF Germany F3 | 2017/01/26 14:50 | Jan Choinski v Grigelis, Laurynas | 6-4,7-5 |
| ITF Germany F3 | 2017/01/25 11:10 | Haerteis, Johannes v Grigelis, Laurynas | 4-6,6-4,2-6 |
| Challenger Andria | 2016/11/24 10:00 | Grigelis, Laurynas v Stefanos Tsitsipas | 6-7,6-4,3-6 |
| Challenger Andria | 2016/11/23 11:40 | Grigelis, Laurynas v Torebko, Peter | 6-4,6-4 |
| Brescia, Italy | 2016/11/20 16:00 | Vanni, Luca v Grigelis, Laurynas | 6-7,6-4,7-6 |
| ITF Great Britain F2 | 2017/02/07 12:25 | Simon, Tobias v Andrea Vavassori | 6-7,7-6,6-1 |
| ITF Great Britain F1 | 2017/02/01 12:40 | Simon, Tobias v Hugo Grenier | 2-6,4-6 |
| ITF France F3 | 2017/01/24 17:15 | Corentin Denolly v Simon, Tobias | 6-7,6-2,6-4 |
| ITF Germany F1 | 2017/01/12 12:00 | Simon, Tobias v Pauffley, Neil | 4-6,2-6 |
| ITF Germany F1 | 2017/01/11 16:15 | Simon, Tobias v Zgombic, Fran Zvonimir | 6-3,1-6,6-3 |
| ITF Germany F1 | 2017/01/11 08:00 | Simon, Tobias v Zgombic, Fran Zvonimir | 6-3,1-6,5-3 |
| Challenger Brescia Qual | 2016/11/12 09:00 | Simon, Tobias v Celebic, Ljubomir | 7-6,6-7,4-6 |
| ITF Norway F3 | 2016/11/03 11:00 | Simon, Tobias v Quinzi, Gianluigi | 5-7,4-6 |