Round: 62 Ground: Clay
| ITF Netherlands F6 | 2015/08/22 08:00 | van Den Honert, Vincent v Borg, Maikel | 6-4,7-5 |
| ITF Netherlands F5 | 2015/08/19 08:00 | van Den Honert, Vincent v Goncalo Oliveira | 5-7,1-6 |
| ITF Germany F9 | 2015/07/28 13:45 | Doumbia, Sadio v van Den Honert, Vincent | 6-4,6-2 |
| ITF Germany F9 | 2015/07/27 11:00 | van Den Honert, Vincent v Sergiienko, Sergiy | 6-2,6-0 |
| ITF Germany F9 | 2015/07/27 09:00 | van Den Honert, Vincent v Pashayan, Daniel | 4-6,7-6,6-3 |
| ITF Belgium F7 | 2015/07/22 12:55 | Joris De Loore v van Den Honert, Vincent | 7-6,6-1 |
| ITF Belgium F7 Qual | 2015/07/20 10:00 | van Den Honert, Vincent v Saive, Thibault | 6-0,6-1 |
| ITF Netherlands F4 | 2015/07/07 11:00 | van Den Honert, Vincent v Banes, Maverick | 4-6,4-6 |
| ITF Netherlands F6 | 2015/08/22 08:00 | Hermans, Mats v Willems, Johann | 1-6,4-6 |
| ITF Netherlands F4 | 2015/07/05 08:00 | de Valk, Roy Sarut v Willems, Johann | 7-5,6-7,5-7 |
| ITF Netherlands F4 | 2015/07/04 08:00 | Willems, Johann v Goluza, Ivan | 6-2,6-3 |
| ITF Belgium F3 | 2015/06/24 10:40 | Willems, Johann v Tabatruong, Maxime | 1-6,0-6 |
| ITF Germany F4 | 2015/01/26 10:30 | Vitaliy Sachko v Willems, Johann | 4-6,6-4,6-3 |
| ITF Germany F4 | 2015/01/25 13:30 | Willems, Johann v Paul Woerner | 6-3,6-3 |
| ITF Germany F4 | 2015/01/25 08:00 | Borter, Nico v Willems, Johann | 2-6,3-6 |
| ITF Germany F3 | 2015/01/20 14:45 | Willems, Johann v Daniel Altmaier | 3-6,3-6 |