Stadium: Lotto RLP Court Round: 24 Ground: Hardcourt indoor
| ITF Qatar F1 | 2018/03/01 12:00 | Scott Griekspoor v Zsombor Piros | 6-4,6-2 |
| Challenger Liberec | 2018/08/01 09:00 | Pedro Sousa v Zsombor Piros | 6-1,3-6,7-6 |
| Challenger Liberec | 2018/07/31 09:40 | Zsombor Piros v Tobias Kamke | 7-5,6-3 |
| Challenger Liberec Qual | 2018/07/30 09:00 | Alexandre Muller v Zsombor Piros | 2-6,3-6 |
| Challenger Liberec Qual | 2018/07/29 09:50 | Pavel Nejedly v Zsombor Piros | 4-6,6-2,2-6 |
| Challenger Liberec Qual | 2018/07/28 09:55 | Juan Pablo Paz v Zsombor Piros | 6-7,4-6 |
| ATP Umag Qual | 2018/07/15 08:00 | Zsombor Piros v Kenny de Schepper | 2-6,6-7 |
| ITF Spain F17 | 2018/07/06 08:00 | Zsombor Piros v Roberto Ortega-Olmedo | 2-6,7-6,3-6 |
| ITF Spain F17 | 2018/07/05 13:00 | Zsombor Piros v Roberto Ortega-Olmedo | 2-6,7-6,3-5 |
| Challenger Segovia | 2018/07/31 09:50 | Scott Griekspoor v Andres Artunedo Martinavarr | 6-3,1-6,6-7 |
| Challenger Prague | 2018/07/25 09:00 | Scott Griekspoor v Pedro Martinez | 6-4,4-6,5-7 |
| Challenger Prague | 2018/07/23 15:30 | Marek Podlesak v Scott Griekspoor | 1-6,4-6 |
| Challenger Scheveningen | 2018/07/17 16:45 | Scott Griekspoor v Kimmer Coppejans | 6-2,4-6,3-6 |
| Challenger Milan | 2018/06/26 11:55 | Andrea Arnaboldi v Scott Griekspoor | 7-6,6-4 |
| Challenger Blois | 2018/06/24 13:00 | Felix Auger Aliassime v Scott Griekspoor | 4-6,4-6 |
| Challenger Blois | 2018/06/23 15:10 | Scott Griekspoor v Stephane Robert | 6-1,2-6,6-2 |
| Challenger Blois | 2018/06/22 09:00 | Scott Griekspoor v Juan Ignacio Londero | 6-2,5-7,7-5 |