Stadium: Court 2 Round: 54 Ground: Hardcourt indoor
| ITF Czech Republic F6 Qual | 2018/07/07 13:30 | Ondrej Krstev v Michael Gloeckler | 3-6,1-6 |
| ITF Germany F4 | 2018/06/16 08:00 | Ondrej Krstev v James Markiewicz | 6-1,6-2 |
| ITF Czech Republic F2 | 2018/05/24 10:10 | Patrik Rikl v Ondrej Krstev | 6-1,6-4 |
| ITF Czech Republic F2 | 2018/05/22 08:00 | Ondrej Krstev v Kody Pearson | 2-6,7-5,6-3 |
| ITF Hungary F1 | 2018/05/08 08:00 | Ondrej Krstev v Nicolae Frunza | 0-6,0-6 |
| ITF Bahrain F1 | 2018/03/21 08:00 | Jelle Sels v Ondrej Krstev | 6-3,6-3 |
| ITF Bahrain F1 | 2018/03/20 13:05 | Ondrej Krstev v Elyas Abdulnabi | 6-4,6-2 |
| ITF Greece F2 | 2018/03/06 12:25 | Marko Tepavac v Ondrej Krstev | 6-4,6-2 |
| ITF Poland F3 | 2018/05/18 12:00 | Wojciech Marek v Pawel Juszczak | 6-7,1-6 |
| ITF Poland F3 | 2018/05/16 08:00 | Wojciech Marek v Piotr Matuszewski | 6-2,4-6,6-1 |
| ITF Poland F2 | 2018/05/08 10:00 | Marvin Netuschil v Wojciech Marek | 6-2,6-4 |
| ITF Poland F5 | 2017/07/10 11:35 | Daniel Michalski v Wojciech Marek | 6-1,7-6 |
| ITF Poland F3 | 2017/06/28 09:00 | Wojciech Marek v Jan Choinski | 2-6,2-6 |
| ITF Poland F3 | 2017/06/27 12:25 | Wojciech Marek v Oleg Prihodko | 6-3,6-2 |