Stadium: Court 2 Round: 46 Ground: Hardcourt indoor
| Challenger Knoxville | 2018/11/05 15:00 | Ryan Shane v Pavel Krainik | 6-1,6-3 |
| Challenger Knoxville | 2018/11/04 15:00 | Pavel Krainik v Luca Wiedenmann | 6-4,7-6 |
| Challenger Las Vegas | 2018/10/21 18:00 | Pavel Krainik v Thai-Son Kwiatkowski | 4-6,2-6 |
| Challenger Las Vegas | 2018/10/20 17:00 | Pavel Krainik v Jordan Sauer | 6-1,6-3 |
| Challenger Calgary | 2018/10/16 00:00 | Pavel Krainik v Filip Peliwo | 4-6,6-3,3-6 |
| Challenger Monterrey | 2018/10/02 18:00 | Pavel Krainik v Santiago Giraldo | 4-6,4-6 |
| Challenger Monterrey | 2018/10/01 18:20 | Emilio Nava v Pavel Krainik | 5-7,6-3,3-6 |
| Challenger Monterrey | 2018/09/30 17:30 | Pavel Krainik v Cristian Rodriguez | 7-6,6-4 |
| Challenger Stockton | 2018/09/30 19:35 | Harri Heliovaara v Sem Verbeek | 6-1,6-4 |
| Challenger Stockton | 2018/09/29 19:20 | Sebastian Korda v Sem Verbeek | 6-3,5-7,3-6 |
| ITF Portugal F16 | 2018/08/25 09:00 | Fred Gil v Sem Verbeek | 6-1,6-2 |
| ITF Portugal F16 | 2018/08/24 09:00 | Sem Verbeek v Jonathan Binding | 7-6,6-4 |
| ITF Portugal F16 | 2018/08/23 09:00 | Niels Desein v Sem Verbeek | 2-6,6-7 |
| ITF Portugal F16 | 2018/08/22 11:10 | Simao Alves v Sem Verbeek | 2-6,0-6 |
| Challenger Cordenons | 2018/08/11 10:15 | Walter Trusendi v Sem Verbeek | 6-1,6-2 |
| Challenger Winnipeg Qual | 2018/07/08 23:00 | Sem Verbeek v Marc-Andrea Huesler | 6-7,4-6 |