Stadium: Court 6 Round: 25 Ground: Hardcourt outdoor
| Italian National Tour | 2020/07/01 16:45 | Lorenzo Sonego v Grigelis, Laurynas | 6-2,6-4 |
| Italian National Tour | 2020/06/29 13:40 | Balzerani, Riccardo v Grigelis, Laurynas | 3-6,2-6 |
| Coupe Davis | 2020/03/07 11:40 | Grigelis, Laurynas v Sousa, Pedro | 6-7,7-5,3-10 |
| Coupe Davis | 2020/03/06 14:00 | Grigelis, Laurynas v Frederico Ferreira Silva | 7-6,3-6,0-6 |
| ITF - M25 Trente | 2020/02/27 13:40 | Grigelis, Laurynas v Nerman Fatic | 4-6,1-6 |
| ITF - M25 Trente | 2020/02/26 14:55 | Grigelis, Laurynas v Giuseppe Tresca | 6-2,6-4 |
| ITF M15 Cairo | 2019/12/15 08:00 | Manuel Guinard v Grigelis, Laurynas | 6-3,6-2 |
| ITF M15 Cairo | 2019/12/14 08:00 | Facundo Juarez v Grigelis, Laurynas | 5-7,4-6 |
| ITF M15 Caslano | 2020/08/31 10:45 | Kirill Kivattsev v Clement Tabur | 7-6,5-7,7-10 |
| ITF M15 Anif | 2020/08/23 12:00 | Kirill Kivattsev v Kai Lemstra | 6-7,3-6 |
| Italian National Tour | 2020/06/30 16:35 | Kirill Kivattsev v Andujar, Pablo | 2-6,6-7 |
| ITF - M15 Monastir | 2020/03/12 08:25 | Kirill Kivattsev v Vidal Azorin, Jose Fco | 6-2,6-4 |
| ITF - M15 Monastir | 2020/03/05 08:30 | von Der Schulenburg, Jeffrey v Kirill Kivattsev | 6-4,7-5 |
| ITF - M15 Monastir | 2020/03/04 12:50 | Kirill Kivattsev v He, Yecong | 6-3,7-5 |
| Castellon, Singles Qualifying M-ITF-ESP-34A | 2019/11/06 10:30 | Kirill Kivattsev v Ojeda Lara, Ricardo | 3-6,2-6 |
| ITF M15 Nules | 2019/10/29 10:30 | Kirill Kivattsev v Damien Wenger | 7-6,5-7,4-6 |