| ITF M15 Eindhoven | 08/02 11:00 | 26 | Elmer Moeller v Stian Klaassen | 6-0,6-2 | |
| ITF M15 Eindhoven | 08/01 14:40 | 25 | Stian Klaassen v Fons Van Sambeek | 7-6,6-3 | |
| ITF M15 Eindhoven | 07/31 08:00 | 54 | Jack Loge v Stian Klaassen | 2-6,3-6 | |
| ITF M15 Eindhoven | 07/30 07:00 | 54 | Stian Klaassen v Twan Van Zijl | 6-3,6-1 | |
| ITF M15 Metzingen | 07/23 07:30 | 62 | Frederic Vogeli v Stian Klaassen | 6-2,6-7,10-5 | |
| ITF M15 Alkmaar | 06/26 10:30 | 54 | Max Van Nunen v Stian Klaassen | 5-7,1-6 |