Round: 54 Ground: Clay
| ITF - M15 Eupen | 2019/08/06 08:00 | Daniel De Jonge v Julian Onken | 6-2,7-6 |
| ITF - M15 Eupen | 2019/08/05 09:00 | Julian Onken v Shunsuke Wakita | 6-0,6-2 |
| ITF - Alemanha F16 | 2018/10/23 10:30 | Leopold Zima v Julian Onken | 4-6,6-3,6-2 |
| ITF - Bélgica F9 | 2018/08/21 12:30 | Julian Onken v Louis Herman | 4-6,6-3,2-6 |
| ITF - Alemanha F9 | 2018/07/22 16:30 | Julian Onken v Maik Steiner | 2-6,6-2,4-6 |
| ITF - Alemanha F9 | 2018/07/22 14:15 | Julian Onken v Arpit Sharma | 6-0,6-3 |
| ITF - Croácia F1 | 2018/03/08 12:30 | Julian Onken v Tom Kocevar-Desman | 2-6,1-6 |
| ITF - Croácia F1 | 2018/03/07 11:30 | Julian Onken v Flemming Peters | 6-4,7-5 |
| ITF - M15 Tucson | 2019/02/11 17:00 | Julian Bradley v Igor Karpovets | 6-3,6-3 |
| ITF - M25 Tucson | 2019/01/07 18:30 | Igor Karpovets v Aleksandar Kovacevic | 5-7,5-7 |
| ITF - Letónia F1 | 2018/07/30 07:10 | Igor Karpovets v Matheus P De Almeida | 6-3,0-6,1-6 |
| ITF - Letónia F1 | 2018/07/29 07:00 | Esteban Bruna v Igor Karpovets | 2-6,6-4,1-6 |
| ITF - Ucrânia F6 | 2016/10/03 10:35 | Igor Karpovets v Marat Deviatiarov | 5-7,1-6 |
| ITF - Ucrânia F5 | 2016/09/26 09:30 | Daniil Zarichanskiy v Igor Karpovets | 6-4,6-2 |
| ITF - Ucrânia F4 | 2016/09/21 08:20 | Igor Karpovets v Vadim Alekseenko | 1-6,4-6 |
| ITF - Ucrânia F4 | 2016/09/20 12:20 | Andrei Soltoianu v Igor Karpovets | 3-6,6-4,4-6 |