Stadium: 10 Stärk Gartenbau Round: 62 Ground: Clay
| ITF Germany F8 Qual | 2018/07/16 11:55 | Marvin Rehberg v Pavle Daljev | 7-5,6-7,3-6 |
| ITF Germany F8 Qual | 2018/07/15 14:30 | Cameron Green v Marvin Rehberg | 6-7,1-6 |
| ITF Germany F7 | 2018/07/09 08:00 | Aziz Kijametovic v Marvin Rehberg | 6-2,6-1 |
| ITF Germany F7 | 2018/07/09 08:00 | Marvin Rehberg v Daniel Kopeinigg | 5-7,6-4,6-2 |
| ITF Germany F7 | 2018/07/08 08:00 | Marvin Rehberg v Mark Burgos | 6-4,6-2 |
| ITF Germany F6 | 2018/07/01 08:00 | Christophe Nickels v Marvin Rehberg | 6-3,7-5 |
| ITF Germany F2 Qual | 2018/01/21 11:00 | Marvin Rehberg v Dominik Recek | 4-6,5-7 |
| ITF Germany F11 | 2017/08/13 08:00 | Marvin Rehberg v Marlon Vankan | 5-7,3-6 |
| ITF USA F37 | 2017/11/14 16:00 | Constantin Schmitz v Nuno Borges | 1-6,7-6,2-6 |
| ITF USA F36 | 2016/11/13 16:00 | Constantin Schmitz v Gianni Mina | 6-4,1-6,0-6 |
| ITF USA F36 | 2016/11/12 19:00 | Constantin Schmitz v Rubin Statham | 6-3,2-6,7-6 |
| ITF USA F36 | 2016/11/11 16:00 | Maxime Chazal v Constantin Schmitz | 6-3,2-6,4-6 |
| ITF USA F36 | 2016/11/10 16:00 | Constantin Schmitz v Felix Auger Aliassime | 6-0,6-2 |
| ITF USA F36 | 2016/11/08 17:45 | Constantin Schmitz v Andrew Carter | 6-2,6-1 |
| ITF USA F36 | 2016/11/07 15:30 | Constantin Schmitz v Isaiah Strode | 4-6,6-4,6-3 |
| ITF USA F36 | 2016/11/06 16:00 | Constantin Schmitz v Kalman Boyd | 6-1,6-0 |