Round: 26 Ground: Clay
| ITF Netherlands F1 | 2017/06/21 09:35 | Hermans, Mats v de Bakker, Thiemo | 2-6,1-6 |
| ITF Netherlands F1 | 2017/06/21 07:00 | Hermans, Mats v de Bakker, Thiemo | 2-6,1-5 |
| Turkey F16, Singles Qualifying | 2017/04/28 08:00 | Marsel Ilhan v de Bakker, Thiemo | 6-4,3-6,6-2 |
| Turkey F16, Singles Qualifying | 2017/04/26 09:05 | Stanek, Robin v de Bakker, Thiemo | 1-6,2-6 |
| Coupe Davis | 2017/04/07 14:55 | Damir Dzumhur v de Bakker, Thiemo | 6-2,6-2,6-2 |
| Challenger Mohammedia | 2016/10/05 11:40 | Kamil Majchrzak v de Bakker, Thiemo | 6-3,3-6,6-3 |
| Challenger Mohammedia | 2016/10/03 11:50 | Dennis Novak v de Bakker, Thiemo | 6-3,4-6,6-7 |
| Rome II, Italy | 2016/09/27 15:00 | Volandri, Filippo v de Bakker, Thiemo | 6-2,6-3 |
| ITF Turkey F22 | 2017/06/07 11:50 | Vilella Martinez, Mario v Westerhof, Boy | 6-3,6-2 |
| ITF Sweden F2 | 2017/05/17 10:00 | Vilella Martinez, Mario v Westerhof, Boy | 7-6,4-6,6-3 |
| ITF Sweden F2 | 2017/05/16 08:15 | Arvidsson Ehn, Jakob v Westerhof, Boy | 1-6,2-6 |
| ITF Italy F12 | 2017/05/14 09:00 | Westerhof, Boy v Juan Pablo Ficovich | 3-6,4-6 |
| ITF Italy F12 | 2017/05/13 09:00 | Westerhof, Boy v Hernan Casanova | 7-6,7-5 |
| ITF Italy F12 | 2017/05/12 09:00 | Westerhof, Boy v Vandenbulcke, Yannick | 6-1,6-3 |
| ITF Italy F12 | 2017/05/11 08:55 | Ollert, Lukas v Westerhof, Boy | 5-7,3-6 |
| ITF Italy F12 | 2017/05/09 07:30 | Rizzuti, Giovanni v Westerhof, Boy | 3-6,6-0,1-6 |