Round: 44 Ground: Carpet indoor
| ITF Switzerland F1 Qual | 2018/02/03 09:00 | Alexander Wolfschmidt v Gian Gruenig | 7-6,0-6,7-6 |
| ITF Germany F3 Qual | 2018/01/28 13:00 | Alexander Wolfschmidt v Mike Loccisano | 3-6,2-6 |
| ITF USA F1 Qual | 2017/12/30 19:30 | Martin Redlicki v Alexander Wolfschmidt | 6-2,6-3 |
| ITF Italy F28 Qual | 2017/09/02 12:50 | Adrian Obert v Alexander Wolfschmidt | 6-3,6-1 |
| ITF Norway F3 | 2016/10/29 09:00 | Alexander Wolfschmidt v Eric Samuelsson | 3-6,3-6 |
| ITF Tunisia F20 Qual | 2016/05/21 09:00 | Alexander Wolfschmidt v Ramy Labna | 4-6,6-2,5-7 |
| ITF Tunisia F19 | 2016/05/16 09:00 | Javier Naser v Alexander Wolfschmidt | 6-1,6-2 |
| ITF Germany F3 | 2018/02/01 17:00 | Robin Kern v Valentin Guenther | 3-6,6-3,6-4 |
| ITF Germany F3 | 2018/01/30 12:30 | Valentin Guenther v Karlo Cubelic | 6-7,6-4,6-4 |
| ITF Germany F16 | 2017/10/23 10:00 | Shalva Dzhanashia v Valentin Guenther | 6-4,7-5 |
| ITF Germany F16 | 2017/10/22 08:00 | Tim Seibert v Valentin Guenther | 6-4,3-6,4-6 |
| ITF Germany F15 | 2017/10/15 12:00 | Valentin Guenther v Justin Boulais | 6-3,6-1 |
| ITF Germany F14 | 2017/10/10 10:00 | Elmar Ejupovic v Valentin Guenther | 6-4,6-7,6-3 |
| ITF Germany F14 | 2017/10/09 10:00 | Shalva Dzhanashia v Valentin Guenther | 5-7,3-6 |
| ITF Germany F14 | 2017/10/08 11:30 | Robert Strombachs v Valentin Guenther | 6-2,3-6,4-6 |