Stadium: Court 1 Round: 27 Ground: Hardcourt outdoor
| Challenger Binghamton | 2018/07/26 23:10 | Laurynas Grigelis v Alejandro Gomez | 6-2,3-6,6-4 |
| Challenger Binghamton | 2018/07/26 17:50 | Bjorn Fratangelo v Laurynas Grigelis | 6-4,2-6,3-6 |
| Challenger Gatineau | 2018/07/18 15:00 | Laurynas Grigelis v Jason Kubler | 6-7,6-4,4-6 |
| Challenger Gatineau | 2018/07/16 17:25 | Laurynas Grigelis v Stefano Napolitano | 6-2,7-5 |
| Challenger - Winnipeg | 2018/07/10 23:00 | Laurynas Grigelis v Go Soeda | 3-6,0-6 |
| ATP Antalya Qual | 2018/06/24 11:00 | Mikhail Youzhny v Laurynas Grigelis | 6-7,6-4,6-2 |
| ATP Antalya Qual | 2018/06/23 12:20 | David Guez v Laurynas Grigelis | 2-6,6-3,5-7 |
| Challenger Fergana | 2018/06/19 05:00 | Egor Gerasimov v Laurynas Grigelis | 6-2,6-3 |
| Challenger Binghamton | 2018/07/26 20:40 | Daniel Evans v Darian King | 3-6,6-7 |
| Challenger Binghamton | 2018/07/26 13:35 | Hugo Grenier v Darian King | 6-3,3-6,4-6 |
| Challenger Gatineau | 2018/07/18 15:00 | Zhe Li v Darian King | 2-6,6-4,6-0 |
| Challenger Gatineau | 2018/07/16 20:00 | Alexis Galarneau v Darian King | 6-7,5-7 |
| Challenger Winnetka | 2018/07/11 18:00 | Darian King v Collin Altamirano | 5-7,6-7 |
| Challenger Winnetka | 2018/07/10 20:55 | Darian King v Donald Young | 6-3,5-7,6-1 |
| Wimbledon Qual | 2018/06/25 10:00 | Alexander Ward v Darian King | 4-6,7-5,6-0 |
| Challenger Ilkley | 2018/06/22 14:50 | Darian King v Oscar Otte | 4-6,6-4,1-6 |