Stadium: Ustron 2 Round: 26 Ground: Clay
| ITF Poland F4 | 2018/05/21 11:00 | Kacper Zuk v Gawron, Marcin | 4-6,3-6 |
| ITF Poland F1 | 2018/05/01 12:10 | Gawron, Marcin v Mazon-Hernandez, Rafael | 3-6,6-2,1-6 |
| Czech Republic F11, Singles | 2017/11/21 13:15 | Kalenichenko, Danylo v Gawron, Marcin | 6-3,6-2 |
| Challenger Bratislava Qual | 2017/11/04 12:35 | Gawron, Marcin v Mertl, Jan | 4-6,6-7 |
| ITF Czech Republic F7 | 2017/10/25 15:45 | Gawron, Marcin v Matej Vocel | 0-6,1-6 |
| Challenger Szczecin | 2017/09/12 19:05 | Richard Gasquet v Gawron, Marcin | 6-3,6-0 |
| ITF Poland F11 | 2017/09/03 10:00 | Gawron, Marcin v Pawel Juszczak | 4-6,3-6 |
| ITF Poland F11 | 2017/09/01 09:00 | Endara, Ivan v Gawron, Marcin | 6-4,6-7,4-6 |
| ITF Poland F4 | 2018/05/22 07:30 | Besada, Santiago v Guy Den Heijer | 6-4,1-6,1-6 |
| ITF Poland F1 | 2018/05/04 13:00 | Guy Den Heijer v Michael Vrbensky | 7-6,2-6,3-6 |
| ITF Poland F1 | 2018/05/03 09:00 | Guy Den Heijer v Piotr Grynkowski | 6-1,6-2 |
| ITF Greece F4 | 2018/03/18 09:30 | Guy Den Heijer v Duje Ajdukovic | 3-6,6-3,4-6 |
| ITF Greece F4 | 2018/03/17 07:30 | Guy Den Heijer v Caripi, Vasilios | 5-7,6-3,6-4 |
| ITF Greece F3 | 2018/03/15 08:00 | Pauffley, Neil v Guy Den Heijer | 6-4,6-2 |
| ITF Greece F3 | 2018/03/13 10:20 | Jannik Sinner v Guy Den Heijer | 3-6,6-7 |
| ITF Greece F2 | 2018/03/03 07:30 | Guy Den Heijer v Duje Ajdukovic | 3-6,5-7 |