| Challenger - Andria | 11/20 12:15 | 25 | [276] Raul Brancaccio v Laurynas Grigelis [311] | 3-6,5-7 | |
| Challenger - Mouilleron-le-Captif | 11/06 11:25 | 25 | [287] Mathias Bourgue v Laurynas Grigelis [241] | 6-3,7-6 | |
| Challenger - Mouilleron-le-Captif | 11/05 13:00 | 54 | Laurynas Grigelis v Laurent Rochette | 6-3,6-4 | |
| Challenger - Mouilleron-le-Captif | 11/04 14:00 | 46 | Laurynas Grigelis v Clement Tabur | 7-6,6-4 | |
| Challenger - Mouilleron-le-Captif | 11/03 17:55 | 45 | Laurynas Grigelis v Ulysse Bertrand | 6-0,6-2 | |
| Challenger - Ismaning | 10/16 15:20 | 25 | [240] Laurynas Grigelis v Kevin Krawietz [260] | 4-6,6-7 | |
| Challenger - Barcelona | 10/09 11:00 | 25 | [159] Sergio Gutierrez-Ferrol v Laurynas Grigelis [237] | 6-4,6-2 | |
| Challenger - Florença | 10/02 14:05 | 25 | [276] Kevin Krawietz v Laurynas Grigelis [238] | 6-4,3-6,6-3 | |
| Challenger - Biella | 09/18 09:45 | 25 | [244] Laurynas Grigelis v Tommy Robredo [236] | 4-6,6-7 | |
| Challenger - Banja Luka | 09/14 10:30 | 27 | [259] Laurynas Grigelis v Alessandro Giannessi [247] | 3-6,4-6 | |
| Challenger - Banja Luka | 09/13 13:30 | 26 | [259] Laurynas Grigelis v Thomaz Bellucci [274] | 2-6,7-6,6-3 | |
| Challenger - Banja Luka | 09/11 12:30 | 25 | [134] Marco Trungelliti v Laurynas Grigelis [259] | 3-6,3-6 | |
| Challenge - Sevilha | 09/06 21:00 | 27 | [194] Pedja Krstin v Laurynas Grigelis [261] | 2-6,6-3,6-4 | |
| Challenge - Sevilha | 09/05 18:30 | 26 | [374] Alejandro D-Fokina v Laurynas Grigelis [261] | 5-7,6-0,4-6 | |
| Challenge - Sevilha | 09/04 10:10 | 25 | [261] Laurynas Grigelis v Ramkumar Ramanathan [134] | 6-4,6-2 | |
| Challenge - Sevilha | 09/03 08:30 | 54 | [261] Laurynas Grigelis v Bernabe Zapata Miralles [276] | 6-3,4-6,6-3 | |
| Challenge - Sevilha | 09/02 10:00 | 46 | [261] Laurynas Grigelis v Marcelo Tomas Barrios Vera [333] | 6-3,6-4 | |
| Challenge - Sevilha | 09/01 11:10 | 45 | Laurynas Grigelis v Jordan Correia | 6-0,4-6,6-0 | |
| Challenger - Cordenons | 08/14 08:00 | 25 | [338] Andrea Pellegrino v Laurynas Grigelis [265] | 6-7,6-2,6-4 | |
| Challenger - Binghamton | 07/28 17:30 | 28 | [98] Jordan Thompson v Laurynas Grigelis [270] | 6-4,6-3 | |
| Challenger - Binghamton | 07/27 18:55 | 27 | [270] Laurynas Grigelis v Darian King [174] | 4-6,6-2,7-6 | |
| Challenger - Binghamton | 07/26 23:10 | 26 | [270] Laurynas Grigelis v Alejandro Gomez [382] | 6-2,3-6,6-4 | |
| Challenger - Binghamton | 07/26 17:50 | 25 | [162] Bjorn Fratangelo v Laurynas Grigelis [270] | 6-4,2-6,3-6 | |
| Challenger - Gatineau | 07/18 15:00 | 26 | [267] Laurynas Grigelis v Jason Kubler [114] | 6-7,6-4,4-6 | |
| Challenger - Gatineau | 07/16 17:25 | 25 | [267] Laurynas Grigelis v Stefano Napolitano [236] | 6-2,7-5 | |
| Challenger - Winnipeg | 07/10 23:00 | 25 | [267] Laurynas Grigelis v Go Soeda [178] | 3-6,0-6 | |
| ATP - Antalya - Qualificação | 06/24 11:00 | 164 | [94] Mikhail Youzhny v Laurynas Grigelis [263] | 6-7,6-4,6-2 | |
| ATP - Antalya - Qualificação | 06/23 12:20 | 64 | [283] David Guez v Laurynas Grigelis [263] | 2-6,6-3,5-7 | |
| Challenger - Fergana | 06/19 05:00 | 25 | [242] Egor Gerasimov v Laurynas Grigelis [263] | 6-2,6-3 | |
| Challenger - Almaty - Qualificação | 06/10 04:30 | 46 | [260] Laurynas Grigelis v Daniel Masur [367] | 6-3,3-6,5-7 |