| ITF Netherlands F4 | 2015/07/05 10:00 | Oliver Anderson v Gijs Buntsma | 6-2,6-1 |
| ITF Netherlands F2 Qual | 2015/06/21 09:00 | Jelle Sels v Gijs Buntsma | 7-6,6-2 |
| 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 Belgium F6 Qual | 2015/07/11 07:00 | Tallon Griekspoor v Hunter Johnson | 6-2,5-7,7-6 |
| ITF Belgium F6 Qual | 2015/07/11 07:00 | Hunter Johnson v Philippe Gelade | 6-3,6-2 |
| ITF USA F28 | 2014/10/11 16:00 | Hunter Johnson v Brandon Donaldson | 7-6,6-4 |