| ITF - M25 Schlieren | 08/23 13:10 | 27 | Ronald Slobodchikov v Laurynas Grigelis | 4-6,6-7 | |
| ITF - M25 Schlieren | 08/22 10:00 | 26 | Raphael Baltensperger v Laurynas Grigelis | 6-7,2-6 | |
| ITF - M25 Schlieren | 08/21 12:30 | 25 | Buvaysar Gadamauri v Laurynas Grigelis | 6-2,0-6,3-6 | |
| Challenger - Praga | 07/22 11:40 | 24 | [296] Laurynas Grigelis v Adam Pavlasek [329] | 2-6,0-6 | |
| ATP - Bastad | 07/15 09:00 | 164 | [295] Laurynas Grigelis v Constant Lestienne [198] | 6-1,2-6,1-6 | |
| ATP - Bastad | 07/14 08:30 | 64 | [170] Joao Domingues v Laurynas Grigelis [295] | 6-7,6-2,2-6 | |
| Challenger - Perúgia | 07/08 09:00 | 166 | [295] Laurynas Grigelis v Guilherme Clezar [322] | 6-4,6-7,1-6 | |
| Challenger - Ludwigshafen | 07/02 09:00 | 24 | [161] Facundo Bagnis v Laurynas Grigelis [295] | 6-4,6-1 | |
| Challenger - Milão | 06/25 15:20 | 25 | [224] Sumit Nagal v Laurynas Grigelis [293] | 6-2,6-3 | |
| Challenger - Milão | 06/24 09:45 | 24 | [278] Johan Tatlot v Laurynas Grigelis [293] | Retired | |
| Challenger - Parma | 06/18 09:55 | 25 | [326] Andrea Collarini v Laurynas Grigelis [295] | 6-3,6-3 | |
| Challenger - Barletta | 04/09 13:30 | 25 | Stefano Napolitano v Laurynas Grigelis | Walkover | |
| Challenger - Barletta | 04/08 14:00 | 24 | [289] Laurynas Grigelis v Zdenek Kolar [219] | 1-6,6-3,7-5 | |
| Taça Davis | 04/06 14:15 | - | Amine Ahouda v Laurynas Grigelis | 4-6,2-6 | |
| Taça Davis | 04/06 14:15 | - | Adam Moundir v Laurynas Grigelis | Cancelled | |
| Taça Davis | 04/05 12:45 | - | [440] Lamine Ouahab v Laurynas Grigelis [287] | 6-2,6-0 | |
| Challenger - Saint-Brieuc | 03/25 11:20 | 24 | [284] Laurynas Grigelis v Tomislav Brkic [299] | 6-7,6-7 | |
| Challenger - Pau | 02/27 14:05 | 25 | [174] Sebastian Ofner v Laurynas Grigelis [284] | 7-6,6-4 | |
| Challenger - Pau | 02/26 09:00 | 24 | [303] Carlos Taberner v Laurynas Grigelis [284] | 4-6,6-4,3-6 | |
| Challenger - Bergamo | 02/18 15:25 | 24 | [282] Laurynas Grigelis v Roberto Marcora [250] | 0-6,3-6 | |
| Challenger - Banguecoque | 02/12 07:15 | 25 | [223] Dudi Sela v Laurynas Grigelis [282] | 6-7,6-0,6-2 | |
| Challenger - Banguecoque | 02/11 08:15 | 24 | [322] Di Wu v Laurynas Grigelis [282] | 7-6,2-6,2-6 | |
| Challenger - Chennai | 02/07 06:35 | 26 | [287] Laurynas Grigelis v Corentin Moutet [145] | 2-6,3-6 | |
| Challenger - Chennai | 02/06 04:30 | 25 | [287] Laurynas Grigelis v Nam Hoang Ly [422] | 4-6,6-2,6-1 | |
| Challenger - Koblenz | 01/14 16:35 | 24 | [281] Laurynas Grigelis v Pavel Kotov [345] | 6-7,3-6 | |
| Challenger Columbus | 01/10 22:25 | 26 | [291] Jan Choinski v Laurynas Grigelis [283] | 7-6,4-6,6-2 | |
| Challenger Columbus | 01/08 19:05 | 25 | [283] Laurynas Grigelis v Mathias Bourgue [259] | 3-6,6-3,6-4 | |
| Challenger Columbus | 01/07 18:05 | 24 | [283] Laurynas Grigelis v Liam Broady [274] | 3-6,6-0,7-5 | |
| Challenger - Orlando | 12/31 23:30 | 24 | [287] Laurynas Grigelis v Ulises Blanch [313] | 1-6,2-6 | |
| Challenger - Andria | 11/21 12:40 | 26 | [137] Quentin Halys v Laurynas Grigelis [311] | 6-3,7-6 |