| ITF Netherlands F1 Qual | 2015/06/13 08:30 | Gijs Buntsma v Marc Dijkhuizen | 1-6,6-7 |
| ITF Portugal F3 Qual | 2015/03/07 10:00 | Gijs Buntsma v Santiago Plaza | 4-6,0-6 |
| ITF Spain F2 | 2015/02/01 11:30 | Goncalo Oliveira v Gijs Buntsma | 6-1,6-1 |
| ITF Netherlands F6 | 2014/08/23 08:00 | Gijs Buntsma v Johann Willems | 2-6,1-6 |
| ITF Netherlands F2 Qual | 2014/06/15 08:00 | Sander Arends v Gijs Buntsma | 6-3,6-1 |
| ITF Netherlands F1 Qual | 2014/06/08 10:10 | Sebastian Ofner v Gijs Buntsma | 6-4,6-0 |
| ITF Germany F4 | 2015/01/26 11:30 | Sander Arends v Julian Onken | 6-1,6-3 |
| ITF Germany F16 | 2014/10/12 07:30 | Julian Onken v Tomas Charlos | 2-6,6-4,6-3 |
| ITF Germany F7 | 2014/07/06 08:30 | Soren Hess-Olesen v Julian Onken | 6-4,6-0 |