Stadium: Court 10 Round: 27 Ground: Clay
| 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 |
| ITF M25 Chiswick | 2019/08/05 18:00 | Stefan Seifert v Michael Shaw | 6-2,6-7,10-7 |
| ITF M25 Chiswick | 2019/08/05 11:00 | Stefan Seifert v Alexander Jhun | 6-2,6-0 |
| ITF Greece F8 | 2018/11/15 08:00 | Stefan Seifert v Austin Rapp | 0-6,2-6 |
| ITF M15 Haren | 2019/08/29 10:45 | Zachary Eisinga v Mats Rosenkranz | 6-3,7-6 |
| ITF M15 Haren | 2019/08/27 14:15 | Max Houkes v Zachary Eisinga | 3-6,1-6 |
| ITF M15 Oldenzaal | 2019/08/16 09:00 | Zachary Eisinga v Bart Stevens | 2-6,6-3,5-7 |
| ITF M15 Oldenzaal | 2019/08/15 15:20 | Zachary Eisinga v Guy Den Heijer | 7-6,7-5 |
| ITF M15 Oldenzaal | 2019/08/14 11:00 | Niels Lootsma v Zachary Eisinga | 7-6,3-6,1-6 |
| ITF M15 Eupen | 2019/08/06 08:00 | Zachary Eisinga v Shinnosuke Hiramatsu | 6-4,2-6,9-11 |
| ITF M15 Eupen | 2019/08/05 09:00 | Lucas Hellfritsch v Zachary Eisinga | 7-6,6-7,4-10 |
| ITF M15 Alkmaar | 2019/06/27 09:55 | Zachary Eisinga v Andrea Bolla | 6-7,3-6 |