Stadium: Cancha 3 Round: 45 Ground: Hardcourt outdoor
| ITF Germany F2 | 2018/01/24 11:30 | Juan Pablo Ficovich v Roelofse, Ruan | 6-4,1-6,7-5 |
| ITF Germany F2 Qual | 2018/01/22 16:30 | Roelofse, Ruan v Panfil, Grzegorz | 7-6,6-1 |
| ITF Germany F2 Qual | 2018/01/22 09:00 | Roelofse, Ruan v Recek, Dominik | 7-5,7-6 |
| Challenger Koblenz Qual | 2018/01/14 10:35 | Vishnu Vardhan v Roelofse, Ruan | 6-7,7-6,7-5 |
| Challenger Champaign Qual | 2017/11/11 22:35 | Roelofse, Ruan v Monette, Samuel | 3-6,6-2,3-6 |
| Challenger Charlottesville | 2017/11/03 17:30 | Roelofse, Ruan v Michael Mmoh | 6-7,4-6 |
| Challenger Charlottesville | 2017/11/02 20:10 | Cameron Norrie v Roelofse, Ruan | 6-7,2-6 |
| Challenger Charlottesville | 2017/10/31 20:05 | Pauffley, Neil v Roelofse, Ruan | 6-7,2-6 |
| Challenger Dallas Qual | 2018/01/28 17:20 | Gonzales, Ruben v Gonzalez, Maximo | 2-6,7-5,5-7 |
| Challenger Dallas Qual | 2018/01/27 16:00 | Gonzales, Ruben v Dias, Francisco | 7-5,6-4 |
| Challenger Blois Qual | 2017/06/18 11:00 | Corentin Moutet v Gonzales, Ruben | 6-1,7-6 |
| Challenger Blois Qual | 2017/06/17 09:40 | Reboul, Fabien v Gonzales, Ruben | 4-6,6-4,3-6 |
| ITF USA F14 | 2017/04/20 14:00 | Gonzales, Ruben v Kaichi Uchida | 5-7,2-6 |
| ITF USA F14 | 2017/04/18 15:40 | Belov, Sergey v Gonzales, Ruben | 3-6,4-6 |
| ITF Bahrain F2 | 2017/03/28 08:00 | Gonzales, Ruben v Fayziev, Sanjar | 3-6,3-6 |
| Challenger Kyoto Qual | 2017/02/18 01:00 | Gonzales, Ruben v Gunneswaran, Prajnesh | 5-7,4-6 |