Home History
| ITF Germany F8 | 2015/07/21 10:30 | Julian Onken v Goncalo Oliveira | 6-4,6-1 |
| ITF Germany F8 Qual | 2015/07/19 08:30 | Julian Onken v Aliaksandr Prudnikau | 6-3,6-3 |
| ITF Germany F7 | 2015/07/15 09:00 | Leon Schutt v Julian Onken | 6-3,6-4 |
| ITF Germany F7 | 2015/07/13 08:00 | Leon Schutt v Julian Onken | 6-1,4-6,7-6 |
| ITF Germany F7 | 2015/07/13 08:00 | Jannik Rother v Julian Onken | 3-6,6-3,0-6 |
| ITF Germany F7 | 2015/07/12 08:00 | Egill Sigurdsson v Julian Onken | 1-6,1-6 |
| ITF Germany F4 | 2015/01/26 11:30 | Sander Arends v Julian Onken | 6-1,6-3 |
| ITF Germany F16 | 2014/10/12 07:30 | Julian Onken v Tomas Charlos | 2-6,6-4,6-3 |
Away History
| ITF Germany F7 | 2015/07/16 12:50 | Anton Zaitcev v Jan Choinski | 3-6,6-3,6-2 |
| ITF Germany F7 | 2015/07/15 09:00 | Jan Choinski v Bjoern Petersen | 6-4,6-4 |
| Challenger Marburg | 2015/06/30 09:00 | Jan Choinski v Inigo C Huegun | 3-6,4-6 |
| ITF Belgium F3 | 2015/06/25 13:00 | Marvin Netuschil v Jan Choinski | 6-4,6-4 |
| ITF Belgium F3 | 2015/06/24 08:00 | Nicolas De Plaen v Jan Choinski | 2-6,1-6 |
| ITF Belgium F3 | 2015/06/23 08:00 | Tristan Meraut v Jan Choinski | 2-6,2-6 |
| ITF Netherlands F1 | 2015/06/18 12:15 | Jan Choinski v Jean-Marc Werner | 4-6,6-2,2-6 |
| ITF Netherlands F1 | 2015/06/17 09:00 | Jan Choinski v Mick Veldheer | 6-0,6-4 |