Stadium: Court 5 Round: 44 Ground: Clay
| ITF Germany F7 | 2017/07/11 13:20 | Benjamin Hassan v Diederich, Tom | 6-3,6-1 |
| ITF Germany F7 | 2017/07/10 10:30 | Diederich, Tom v Hoeveler, Leon | 5-7,6-2,6-0 |
| ITF Germany F7 | 2017/07/09 08:00 | Schwencke Lindqvist, Thomas v Diederich, Tom | 4-6,3-6 |
| ITF Germany F7 | 2017/07/09 08:00 | Beddow, Samuel v Diederich, Tom | 2-6,0-6 |
| ITF France F15 Qual | 2016/07/16 14:15 | Aranda, Juan v Diederich, Tom | 6-4,2-6,7-6 |
| Coupe Davis | 2016/03/06 08:00 | Vorster, Tucker v Diederich, Tom | 6-3,6-4 |
| ITF Portugal F1 | 2016/02/22 15:00 | Diederich, Tom v van Den Honert, Vincent | 4-6,5-7 |
| ITF Portugal F1 | 2016/02/22 11:30 | Belda, Pablo v Diederich, Tom | 0-6,3-6 |
| ITF Germany F6 | 2018/07/02 09:00 | Hellfritsch, Lucas v Boris Fassbender | 5-7,2-6 |
| ITF Belgium F2 | 2018/06/28 14:10 | Juan Pablo Varillas v Boris Fassbender | 4-6,6-4,6-2 |
| ITF Belgium F2 | 2018/06/27 16:10 | Boris Fassbender v Salman, Omar | 3-6,7-5,6-3 |
| Egypt F14, Singles Qualifying | 2018/04/19 08:00 | Boris Fassbender v Deviatiarov, Marat | 4-6,3-6 |
| Egypt F14, Singles Qualifying | 2018/04/18 09:05 | Michael Zhu v Boris Fassbender | 6-3,3-6,4-6 |
| Egypt F14, Singles Qualifying | 2018/04/16 08:30 | Weidinger, Dominic v Boris Fassbender | 2-6,5-7 |
| Egypt F14, Singles Qualifying | 2018/04/15 09:30 | Boris Fassbender v Nemakal, Ajay Pruthvi | 6-0,6-2 |
| ITF Egypt F13 | 2018/04/07 10:30 | Boris Fassbender v Vigani, Joy | 4-6,6-7 |