Round: 29 Ground: Clay
| ITF Germany F10 | 2018/08/02 13:00 | Constantin Schmitz v Jeroen Vanneste | 6-4,6-7,3-6 |
| ITF M15 Antalya | 2019/03/01 07:00 | Dmitry Popko v Jeroen Vanneste | 7-6,6-2 |
| ITF M15 Antalya | 2019/02/28 09:05 | Marco Mosciatti v Jeroen Vanneste | 0-6,1-6 |
| ITF M15 Antalya | 2019/02/27 08:15 | Sebastian Baez v Jeroen Vanneste | 2-6,0-6 |
| ITF M15 Antalya | 2019/02/21 08:40 | Pietro Rondoni v Jeroen Vanneste | 6-1,3-6,7-5 |
| ITF M15 Antalya | 2019/02/20 09:20 | Timofey Skatov v Jeroen Vanneste | 3-6,7-6,4-6 |
| ITF M15 Palmanova | 2019/01/30 10:40 | Teymuraz Gabashvili v Jeroen Vanneste | 4-6,6-2,7-6 |
| ITF M15 Palmanova | 2019/01/24 10:00 | Carlos Alcaraz Garfia v Jeroen Vanneste | 6-3,6-1 |
| ITF M15 Palmanova | 2019/01/22 10:00 | Tomas Jirousek v Jeroen Vanneste | 0-6,1-6 |
| ITF M15 Faro | 2019/02/27 10:00 | Alvaro Lopez San Martin v Constantin Schmitz | 6-4,6-0 |
| ITF M15 Faro | 2019/02/26 10:00 | Constantin Schmitz v Jonathan Gray | 6-2,6-2 |
| ITF M15 Faro | 2019/02/25 12:15 | Constantin Schmitz v Omar Giacalone | 6-1,6-3 |
| ITF M15 Vale Do Lobo | 2019/02/18 15:30 | Constantin Schmitz v Vullnet Tashi | 4-6,6-4,11-13 |
| ITF M15 Kaarst | 2019/02/08 16:05 | Robin Stanek v Constantin Schmitz | 6-0,6-4 |
| ITF M15 Kaarst | 2019/02/07 13:00 | Petr Nouza v Constantin Schmitz | 4-6,6-1,3-6 |
| ITF M15 Monastir | 2019/01/16 09:00 | Constantin Schmitz v Maksim Tikhomirov | 6-3,6-2 |
| ITF M15 Monastir | 2019/01/14 12:00 | Constantin Schmitz v Mattia Bellucci | 6-2,6-0 |