Stadium: Central Round: 45 Ground: Hardcourt indoor
| Challenger Ismaning | 2018/10/16 15:20 | Laurynas Grigelis v Kevin Krawietz | 4-6,6-7 |
| Challenger Barcelona | 2018/10/09 11:00 | Sergio Gutierrez-Ferrol v Laurynas Grigelis | 6-4,6-2 |
| Challenger Florence | 2018/10/02 14:05 | Kevin Krawietz v Laurynas Grigelis | 6-4,3-6,6-3 |
| Challenger Biella | 2018/09/18 09:45 | Laurynas Grigelis v Tommy Robredo | 4-6,6-7 |
| Challenger Banja Luka | 2018/09/14 10:30 | Laurynas Grigelis v Alessandro Giannessi | 3-6,4-6 |
| Challenger Banja Luka | 2018/09/13 13:30 | Laurynas Grigelis v Thomaz Bellucci | 2-6,7-6,6-3 |
| Challenger Banja Luka | 2018/09/11 12:30 | Marco Trungelliti v Laurynas Grigelis | 3-6,3-6 |
| Challenger Seville | 2018/09/06 21:00 | Pedja Krstin v Laurynas Grigelis | 2-6,6-3,6-4 |
| Challenger Mouilleron Le Captif Qual | 2017/11/04 14:10 | Evan Furness v Ulysse Bertrand | 6-0,6-2 |
| Challenger Mouilleron Le Captif Qual | 2016/11/05 09:40 | Ulysse Bertrand v Stuart Parker | 4-6,3-6 |