| ITF Belgium F7 Qual | 2015/07/19 08:30 | Buntsma, Gijs v Johnson, Hunter | 6-4,4-6,1-6 |
| ITF Netherlands F4 | 2015/07/05 10:00 | Anderson, Oliver v Buntsma, Gijs | 6-2,6-1 |
| ITF Netherlands F2 Qual | 2015/06/21 09:00 | 셀스, 젤르 v Buntsma, Gijs | 7-6,6-2 |
| ITF Netherlands F1 Qual | 2015/06/13 08:30 | Buntsma, Gijs v 디즈키후이젠, 마르크 | 1-6,6-7 |
| ITF Portugal F3 Qual | 2015/03/07 10:00 | Buntsma, Gijs v Plaza, Santiago | 4-6,0-6 |
| ITF Spain F2 | 2015/02/01 11:30 | 올리베이라, 곤칼로 v Buntsma, Gijs | 6-1,6-1 |
| ITF Netherlands F6 | 2014/08/23 08:00 | Buntsma, Gijs v Willems, Johann | 2-6,1-6 |
| ITF Netherlands F2 Qual | 2014/06/15 08:00 | 아렌즈, 샌더 v Buntsma, Gijs | 6-3,6-1 |
| ITF Germany F8 | 2015/07/22 10:00 | 온켄, 줄리안 v 초인스키, 잔 | 6-7,2-6 |
| ITF Germany F8 | 2015/07/21 10:30 | 온켄, 줄리안 v 올리베이라, 곤칼로 | 6-4,6-1 |
| ITF Germany F8 Qual | 2015/07/19 08:30 | 온켄, 줄리안 v 프루드니카우, 알리아크산들 | 6-3,6-3 |
| ITF Germany F7 | 2015/07/15 09:00 | Schutt, Leon v 온켄, 줄리안 | 6-3,6-4 |
| ITF Germany F7 | 2015/07/13 08:00 | Schutt, Leon v 온켄, 줄리안 | 6-1,4-6,7-6 |
| ITF Germany F7 | 2015/07/13 08:00 | 로더, 자닉 v 온켄, 줄리안 | 3-6,6-3,0-6 |
| ITF Germany F7 | 2015/07/12 08:00 | 시굴드슨, 에질 v 온켄, 줄리안 | 1-6,1-6 |
| ITF Germany F4 | 2015/01/26 11:30 | 아렌즈, 샌더 v 온켄, 줄리안 | 6-1,6-3 |