Stadium: Court 2 Round: 25 Ground: Clay
| Challenger Guayaquil Qual | 2017/10/28 19:15 | Juan Sebastian Gomez v Hampel, Lenny | 3-6,5-7 |
| Challenger Cali 2 Qual | 2017/10/14 19:00 | Facundo Mena v Juan Sebastian Gomez | 6-4,6-4 |
| Bogota, Colombia | 2017/09/08 18:25 | Velotti, Agustin v Juan Sebastian Gomez | 7-5,6-4 |
| Bogota, Colombia | 2017/09/07 16:30 | Juan Sebastian Gomez v Bellotti, Riccardo | 6-4,6-2 |
| Bogota, Colombia | 2017/09/06 17:05 | Juan Sebastian Gomez v Quiroz, Roberto | 6-4,6-3 |
| Challenger Bogota Qual | 2017/09/04 15:30 | Juan Pablo Varillas v Juan Sebastian Gomez | 6-3,6-3 |
| Challenger Bogota Qual | 2017/09/03 15:00 | Neis, Fabricio v Juan Sebastian Gomez | 3-6,7-5,4-6 |
| ITF Colombia F3 | 2017/08/02 16:50 | Echazu, Mauricio v Juan Sebastian Gomez | 7-5,4-6,6-4 |
| ITF Dominican Republic F1 | 2017/11/27 13:00 | Chang, Jonathan v Greif, Lukas | 6-3,4-6,0-6 |
| ITF Dominican Republic F1 | 2017/11/26 15:00 | Gurevich, Victor v Greif, Lukas | 0-6,1-6 |
| ITF USA F38 | 2017/11/21 15:00 | Greif, Lukas v Ward, Alexander | 1-6,5-7 |
| ITF USA F38 | 2017/11/19 15:00 | Greif, Lukas v Reist, Riley H | 1-6,6-2,6-3 |
| ITF USA F35 | 2017/10/29 17:30 | Bivens, Dejon v Greif, Lukas | 6-4,6-4 |
| ITF USA F25 | 2017/07/26 16:00 | Ezekiel Clark v Greif, Lukas | 7-6,5-7,6-2 |
| ITF USA F25 | 2017/07/25 16:50 | Greif, Lukas v Shane, Ryan | 6-3,6-3 |
| ITF USA F25 Qual | 2017/07/24 14:00 | Greif, Lukas v Chakravarthi, Caleb | 7-6,6-4 |