Stadium: Stadium Court 3 Round: 27 Ground: Clay
| ITF USA F16 | 2018/06/21 20:00 | Isaiah Strode v Johns, Collin | 6-7,1-6 |
| ITF USA F16 | 2018/06/20 23:05 | Tikhomirov, Maksim v Johns, Collin | 2-6,2-6 |
| ITF USA F14 | 2018/06/12 15:00 | Johns, Collin v Kalovelonis, Markos | 4-6,3-6 |
| ITF USA F12 | 2018/04/25 16:00 | Arconada, Jordi v Johns, Collin | 6-2,6-4 |
| ITF USA F11 | 2018/04/17 14:00 | Rodriguez-Pace, Ricardo v Johns, Collin | 6-3,6-2 |
| ITF Israel F3 | 2018/03/21 08:00 | Johns, Collin v Bulis, Mor | 2-6,3-6 |
| ITF Israel F1 | 2018/03/06 08:00 | Johns, Collin v Vandenbulcke, Yannick | 0-6,3-6 |
| ITF Israel F1 | 2018/03/04 10:30 | Johns, Collin v Radionov, Motvey | 6-3,6-4 |
| ITF USA F16 | 2018/06/21 19:50 | Ross, Gianni v Mcnally, John | 6-4,6-2 |
| ITF USA F16 | 2018/06/20 17:30 | Ross, Gianni v Dan Martin | 4-6,6-1,7-6 |
| ITF USA F16 | 2018/06/18 17:00 | Ross, Gianni v Sundaram, Ritik | 6-2,6-2 |
| ITF USA F16 | 2018/06/17 17:00 | Ross, Gianni v Lagaev, Nick | 6-2,6-7,6-1 |
| ITF USA F2 Qual | 2018/01/10 18:00 | Ross, Gianni v Bergevi, Filip | 6-4,2-6,5-7 |
| ITF USA F2 Qual | 2018/01/07 18:00 | Ross, Gianni v Tabrizi, Keivon | 1-6,7-6,6-3 |
| ITF USA F2 Qual | 2018/01/06 18:00 | Ross, Gianni v Thayne, Cruz | 6-2,6-0 |
| ITF USA F1 | 2018/01/04 19:35 | Lebedev, Alexander v Ross, Gianni | 6-1,6-1 |