| ITF Dominican Rep F3 | 2016/12/12 13:00 | Johns, Collin v Wojcik, Jakub | 6-2,6-1 |
| ITF Romania F12 | 2017/08/30 13:25 | Johns, Collin v Franco Agamenone | 4-6,1-6 |
| ITF Romania F11 Qual | 2017/08/21 16:00 | Johns, Collin v Bolardt, Antonin | 6-1,4-6,2-6 |
| ITF Romania F11 Qual | 2017/08/20 10:30 | Johns, Collin v Dina, George Iulian | 6-2,6-2 |
| ITF Romania F10 | 2017/08/16 07:00 | Luncanu, Petru-Alexandru v Johns, Collin | 6-3,7-6 |
| ITF USA F22 | 2017/06/30 14:00 | Torpegaard, Mikael v Johns, Collin | 6-2,5-7,6-1 |
| ITF USA F22 | 2017/06/28 18:05 | Bivens, Dejon v Johns, Collin | 0-6,1-6 |
| ITF USA F22 | 2017/06/26 14:00 | Johns, Collin v Cannon Kingsley | 6-2,6-2 |
| ITF USA F22 | 2017/06/25 14:00 | Johns, Collin v Liu, Yang | 6-1,6-2 |
| ITF Netherlands F5 | 2017/08/12 08:00 | Wojcik, Jakub v Buntsma, Gijs | 6-4,0-6,3-6 |
| ITF Belgium F6 | 2017/07/22 11:00 | Wojcik, Jakub v Cornut-Chauvinc, Antoine | 7-6,6-3 |
| ITF Belgium F6 | 2017/07/22 07:00 | Seurin, Julien v Wojcik, Jakub | 6-7,3-6 |
| Porto Rico F1, Simples | 2016/12/19 13:00 | Rodriguez-Vidal, Alejandro v Wojcik, Jakub | 0-6,6-3,6-4 |
| Porto Rico F1, Simples | 2016/12/18 13:30 | Irizarry, Hector Neftali v Wojcik, Jakub | 2-6,2-6 |
| ITF Dominican Rep F3 | 2016/12/12 13:00 | Johns, Collin v Wojcik, Jakub | 6-2,6-1 |
| ITF Dominican Rep F3 | 2016/12/11 14:00 | Wojcik, Jakub v Mercier, Tyler | 7-5,6-3 |
| ITF Dominican Republic F2 | 2016/12/04 15:30 | Luis Britto v Wojcik, Jakub | 3-6,6-3,6-3 |