Stadium: Court 3 Round: 25 Ground: Clay
| ITF Poland F4 Qual | 2015/08/30 07:30 | Adrian Andrzejczuk v Marek Gengel | 3-6,6-2,6-0 |
| ITF M15 Sharm El Sheikh | 2019/04/11 08:00 | Adrian Andrzejczuk v Kacper Zuk | 7-6,3-6,2-6 |
| ITF M15 Sharm El Sheikh | 2019/04/10 09:55 | Gian Marco Ortenzi v Adrian Andrzejczuk | 5-7,0-6 |
| ITF M15 Sharm El Sheikh | 2019/02/04 09:00 | Michiel de Krom v Adrian Andrzejczuk | 6-4,6-4 |
| ITF M15 Sharm El Sheikh | 2019/01/31 08:00 | Lukas Klein v Adrian Andrzejczuk | 5-7,6-0,6-0 |
| ITF M15 Sharm El Sheikh | 2019/01/29 08:00 | Rishab Agarwal v Adrian Andrzejczuk | 2-6,2-6 |
| ITF M15 Sharm El Sheikh | 2019/01/24 08:00 | Lukas Klein v Adrian Andrzejczuk | 6-1,6-3 |
| ITF M15 Sharm El Sheikh | 2019/01/23 11:20 | Adrian Andrzejczuk v Olexiy Kolisnyk | 6-1,6-2 |
| ITF M15 Sharm El Sheikh | 2019/01/21 11:30 | Adrian Andrzejczuk v Federico Iannaccone | 6-3,6-4 |
| ITF M15 Tel Aviv | 2019/03/28 10:40 | Alessandro Bega v Marek Gengel | 7-6,6-2 |
| ITF M15 Tel Aviv | 2019/03/27 09:30 | Brian Bencic v Marek Gengel | 6-4,2-6,6-7 |
| ITF M15 Quinta Do Lago | 2019/03/20 10:00 | Marek Gengel v Artem Dubrivnyy | 1-6,2-6 |
| ITF M15 Quinta Do Lago | 2019/03/18 14:00 | Marek Gengel v Alessandro Coppini | 6-2,6-1 |
| ITF M15 Quinta Do Lago | 2019/03/18 10:00 | Marek Gengel v Manuel Goncalves | 6-4,7-5 |
| ITF M15 Portimao | 2019/03/13 10:00 | Tomas Martin Etcheverry v Marek Gengel | 7-6,4-6,6-1 |
| ITF M15 Portimao | 2019/03/12 10:00 | Luke Johnson v Marek Gengel | 6-2,4-6,7-10 |
| ITF M15 Monastir | 2019/02/27 08:30 | Maxime Tchoutakian v Marek Gengel | 4-6,7-6,6-4 |