Stadium: Centre Court Round: 29 Ground: Clay
| Challenger Sopot MD | 2018/08/04 10:00 | Kowalczyk/Walkow v Panfil/Sakharov | 7-6,7-5 |
| Challenger Sopot MD | 2018/08/02 09:00 | Propoggia/Puodziunas v Kowalczyk/Walkow | 2-6,4-6 |
| Challenger Sopot MD | 2018/08/01 09:00 | Majchrzak/Zielinski v Kowalczyk/Walkow | 2-6,6-7 |
| Challenger - Poznan - Dublu Masculin | 2018/06/08 14:55 | Kowalczyk/Walkow v Dembek/Zielinski | 7-6,6-3 |
| Challenger - Poznan - Dublu Masculin | 2018/06/07 13:30 | Laaksonen/Panfil v Kowalczyk/Walkow | 5-7,6-3,8-10 |
| Challenger - Poznan - Dublu Masculin | 2018/06/06 16:00 | Kowalczyk/Walkow v Daniel/Zapata Miralles | 7-6,6-1 |
| ITF Czech Republic F8 MD | 2017/11/05 09:30 | Drzewiecki/Smola v Kowalczyk/Walkow | 7-6,6-7,10-8 |
| ITF Czech Republic F8 MD | 2017/11/04 12:00 | Jaloviec/Michnev v Kowalczyk/Walkow | 4-6,4-6 |
| Challenger Sopot MD | 2018/08/02 09:00 | Drzewiecki/Zuk v Gonzales/Lammons | 3-6,1-6 |
| Challenger Sopot MD | 2018/07/31 16:30 | Cachin/Olivo v Gonzales/Lammons | 4-6,2-6 |
| Challenger - Tampere - Dublu Masculin | 2018/07/27 16:35 | Gonzales/Lammons v Eriksson/Goransson | 3-6,4-6 |
| Challenger - Tampere - Dublu Masculin | 2018/07/26 12:10 | Gonzales/Lammons v Benchetrit/Blancaneaux | 6-4,4-6,10-5 |
| Challenger Scheveningen MD | 2018/07/22 10:00 | Martinez/Oliveira v Gonzales/Lammons | 3-6,7-6,5-10 |
| Challenger Scheveningen MD | 2018/07/21 11:00 | Gonzales/Lammons v Pasha/Reese | 6-4,6-3 |
| Challenger Scheveningen MD | 2018/07/19 15:00 | Coppejans/Desein v Gonzales/Lammons | 6-7,6-4,7-10 |
| Challenger Scheveningen MD | 2018/07/17 17:00 | Niesten/Sijsling v Gonzales/Lammons | 3-6,4-6 |