Stadium: Court 1 Round: 25 Ground: Hardcourt outdoor
| 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 |
| Challenger Blois | 2018/06/20 14:00 | Carlos Berlocq v Scott Griekspoor | 6-3,6-7,4-6 |
| ITF France F13 | 2018/07/10 10:25 | Remi Boutillier v Andres Artunedo Martinavarr | 6-4,6-4 |
| Challenger Recanati | 2018/07/03 15:05 | Viktor Galovic v Andres Artunedo Martinavarr | 6-7,6-1,7-6 |
| Challenger Recanati Qual | 2018/07/02 11:40 | Andres Artunedo Martinavarr v Antoine Escoffier | 6-4,6-3 |
| Challenger Recanati Qual | 2018/07/01 09:40 | Andres Artunedo Martinavarr v Aslan Karatsev | 7-6,6-1 |
| Challenger Recanati Qual | 2018/06/30 12:30 | Di Wu v Andres Artunedo Martinavarr | 4-6,7-6,4-6 |
| Challenger Nottingham Qual | 2018/06/09 13:50 | Jonathan Gray v Andres Artunedo Martinavarr | 6-3,6-7,7-6 |
| ITF Spain F13 | 2018/06/01 13:00 | Emil Ruusuvuori v Andres Artunedo Martinavarr | 6-3,6-2 |
| ITF Spain F13 | 2018/05/31 13:10 | Sergio Barranco v Andres Artunedo Martinavarr | 6-7,1-6 |