Stadium: Center Court Round: 25 Ground: Hardcourt outdoor
| ITF M25 Poznan | 2019/08/22 12:20 | Ioannis Stamoulos v Vaclav Safranek | 0-6,1-6 |
| ITF M25 Poznan | 2019/08/21 16:00 | Ioannis Stamoulos v Jan Wajdemajer | 6-3,6-4 |
| ITF M25 Poznan | 2019/08/21 13:00 | Ioannis Stamoulos v Jan Wajdemajer | 6-3,5-4 |
| ITF M25 Poznan | 2019/08/20 08:00 | Mats Rosenkranz v Ioannis Stamoulos | 6-1,6-0 |
| ITF M15 Baja | 2019/08/12 08:00 | Samuel Puskar v Ioannis Stamoulos | 6-0,6-1 |
| ITF M15 Tanger | 2019/07/15 09:00 | Horst Rieder v Ioannis Stamoulos | 6-4,6-4 |
| ITF M15 Heraklion | 2019/05/07 07:00 | Brandon Murphy v Ioannis Stamoulos | 7-5,6-1 |
| ITF M15 Heraklion | 2019/05/06 07:00 | Ioannis Stamoulos v Rotem Sobol | 1-6,6-4,10-4 |
| ITF M15 Pajulahti | 2019/09/19 07:30 | Yanki Erel v Stefan Seifert | 6-2,6-0 |
| ITF M15 Pajulahti | 2019/09/17 14:25 | Stefan Seifert v Ryan Nijboer | 6-3,6-4 |
| ITF M15 Haren | 2019/08/30 12:30 | Stefan Seifert v Zachary Eisinga | 5-7,6-3,3-6 |
| ITF M15 Haren | 2019/08/29 10:40 | Kristjan Tamm v Stefan Seifert | 3-6,3-6 |
| ITF M15 Haren | 2019/08/28 09:00 | Stefan Seifert v Alejo Vilaro | 6-1,6-3 |
| ITF M25 Chiswick | 2019/08/09 12:35 | Jurij Rodionov v Stefan Seifert | 6-4,6-4 |
| ITF M25 Chiswick | 2019/08/08 09:00 | Maxime Pauwels v Stefan Seifert | 5-7,2-6 |
| ITF M25 Chiswick | 2019/08/07 09:00 | Stefan Seifert v Francesco Vilardo | 6-3,6-1 |