| Coupe Davis | 04/09 08:00 | 27 | [60] Nikoloz Basilashvili v Grigelis, Laurynas [249] | 6-0,6-1,6-0 | |
| Coupe Davis | 04/07 09:20 | 27 | Tsivadze, George v Grigelis, Laurynas | 3-6,2-6,2-6 | |
| ITF Israel F3 | 03/29 09:10 | 26 | Grigelis, Laurynas v Bar, Dekel | 1-6,4-6 | |
| ITF Israel F3 | 03/27 08:00 | 25 | Grigelis, Laurynas v Saez, Juan Carlos | 7-6,4-6,7-5 | |
| ITF Israel F2 | 03/23 08:30 | 27 | [419] Enzo Couacaud v Grigelis, Laurynas [251] | 6-1,6-4 | |
| ITF Israel F2 | 03/22 10:10 | 26 | Tamir, Daniel v Grigelis, Laurynas | 4-6,2-6 | |
| ITF Israel F2 | 03/21 10:05 | 25 | Ovil, Orel v Grigelis, Laurynas | 4-6,1-6 | |
| ITF Israel F1 | 03/17 09:00 | 27 | Bar, Dekel v Grigelis, Laurynas | 6-3,6-3 | |
| ITF Israel F1 | 03/16 09:00 | 26 | Barkai, Yannai v Grigelis, Laurynas | 0-6,4-6 | |
| ITF Israel F1 | 03/15 09:00 | 25 | Yshai Oliel v Grigelis, Laurynas | 3-6,2-6 | |
| ITF Italy F2 | 03/04 11:10 | 28 | [435] Viola, Matteo v Grigelis, Laurynas [262] | 6-3,7-6 | |
| ITF Italy F2 | 03/03 17:25 | 27 | [409] Bachinger, Matthias v Grigelis, Laurynas [262] | 3-6,7-5,6-7 | |
| ITF Italy F2 | 03/02 15:50 | 26 | Andrea Vavassori v Grigelis, Laurynas | 3-6,2-6 | |
| ITF Italy F2 | 02/28 17:15 | 25 | Hugo Grenier v Grigelis, Laurynas | 4-6,6-7 | |
| Challenger Bergamo Qual | 02/19 10:50 | 46 | Grigelis, Laurynas v Egor Gerasimov | 4-6,2-6 | |
| Challenger Bergamo Qual | 02/18 13:40 | 45 | Grigelis, Laurynas v Glasspool, Lloyd | 6-7,6-3,7-6 | |
| ITF Great Britain F2 | 02/10 10:30 | 28 | Grigelis, Laurynas v Oscar Otte | 6-7,5-7 | |
| ITF Great Britain F2 | 02/09 12:25 | 27 | Grigelis, Laurynas v Jay Clarke | 3-6,6-3,7-6 | |
| ITF Great Britain F2 | 02/08 10:30 | 26 | Grigelis, Laurynas v Simon, Tobias | 6-4,7-6 | |
| ITF Great Britain F2 | 02/07 13:40 | 25 | Grigelis, Laurynas v Roumane, Rayane | 6-4,6-2 | |
| Coupe Davis | 02/05 10:00 | 26 | Grigelis, Laurynas v Rakotondramanga, Antso | 6-4,7-6,6-4 | |
| Coupe Davis | 02/03 14:00 | 26 | Grigelis, Laurynas v Lucas Andriamasilalao | 6-1,6-2,6-4 | |
| ITF Germany F3 | 01/26 14:50 | 26 | Jan Choinski v Grigelis, Laurynas | 6-4,7-5 | |
| ITF Germany F3 | 01/25 11:10 | 25 | Haerteis, Johannes v Grigelis, Laurynas | 4-6,6-4,2-6 | |
| Challenger Andria | 11/24 10:00 | 26 | Grigelis, Laurynas v Stefanos Tsitsipas | 6-7,6-4,3-6 | |
| Challenger Andria | 11/23 11:40 | 25 | Grigelis, Laurynas v Torebko, Peter | 6-4,6-4 | |
| Brescia, Italy | 11/20 16:00 | 29 | Vanni, Luca v Grigelis, Laurynas | 6-7,6-4,7-6 | |
| Brescia, Italy | 11/19 14:00 | 28 | Salvatore Caruso v Grigelis, Laurynas | 4-6,4-6 | |
| Brescia, Italy | 11/18 16:30 | 27 | Grigelis, Laurynas v Egor Gerasimov | Retired | |
| Brescia, Italy | 11/17 21:05 | 26 | Mayer, Leonardo v Grigelis, Laurynas | 6-3,6-7,5-7 |