Stadium: Court 3 Round: 25 Ground: Hardcourt outdoor
| ITF - M15 Sharm El Sheikh | 2019/03/13 11:45 | Kai Wehnelt v David Poljak | 4-6,4-6 |
| ITF - M15 Sharm El Sheikh | 2019/03/05 08:00 | Michael Vrbensky v Kai Wehnelt | 6-4,6-3 |
| ITF M15 Kaarst | 2019/02/08 13:30 | Mats Rosenkranz v Kai Wehnelt | 6-4,6-7,6-2 |
| ITF M15 Kaarst | 2019/02/07 14:55 | Kai Wehnelt v Karlo Cubelic | 7-6,7-6 |
| ITF - M25 Nussloch | 2019/01/24 13:45 | Peter Heller v Kai Wehnelt | 6-4,6-1 |
| ITF - M25 Nussloch | 2019/01/23 10:00 | Kai Wehnelt v Arjun Kadhe | 7-6,7-6 |
| ITF - M25 Nussloch | 2019/01/21 16:10 | Kai Wehnelt v Robin Lang | 2-6,1-6 |
| ITF - M25 Nussloch | 2019/01/21 09:00 | Kai Wehnelt v Niklas Albuszies | 6-1,6-2 |
| ITF M25 Glasgow | 2019/02/22 14:06 | Igor Sijsling v Jeremy Jahn | 5-7,1-6 |
| ITF M25 Glasgow | 2019/02/22 13:00 | Igor Sijsling v Jeremy Jahn | 5-7,1-6 |
| ITF M25 Glasgow | 2019/02/21 10:00 | Igor Sijsling v Tom Fawcett | 6-2,6-1 |
| ITF M25 Glasgow | 2019/02/19 10:00 | Benjamin Hassan v Igor Sijsling | 5-7,3-6 |
| ITF - M25 Barnstaple | 2019/02/12 11:25 | Igor Sijsling v Evan Hoyt | 6-7,4-6 |
| ITF M15 Kaarst | 2019/02/10 12:00 | Igor Sijsling v Botic Van De Zandschulp | 6-1,6-4 |
| ITF M15 Kaarst | 2019/02/09 14:05 | Igor Sijsling v Robin Stanek | 6-3,6-0 |
| ITF M15 Kaarst | 2019/02/08 12:00 | Igor Sijsling v Lucas Gerch | 6-4,6-4 |