Stadium: Court 2 Round: 25 Ground: Hardcourt outdoor
| Challenger Meerbusch | 2018/08/14 15:25 | Rudolf Molleker v Ondrej Styler | 6-3,6-4 |
| Challenger Prague | 2018/07/21 10:05 | Alen Avidzba v Ondrej Styler | 6-1,7-6 |
| ITF Czech Republic F3 | 2018/05/30 13:20 | Marek Jaloviec v Ondrej Styler | 6-4,6-3 |
| ITF Czech Republic F3 Qual | 2018/05/28 09:30 | Ondrej Styler v Daniel Vrba | 4-6,7-5,6-1 |
| ITF Czech Republic F3 Qual | 2018/05/27 08:00 | Filip Duda v Ondrej Styler | 5-7,4-6 |
| ITF Czech Republic F3 Qual | 2018/05/26 08:00 | Isa Mammetgulyyev v Ondrej Styler | 1-6,2-6 |
| ITF Egypt F10 | 2018/03/18 08:00 | Ondrej Styler v Milos Sekulic | 6-7,3-6 |
| ITF Egypt F10 | 2018/03/17 08:00 | Ondrej Styler v Koonwar Gupta | 6-1,6-2 |
| ITF Finland F3 | 2018/08/15 08:00 | Karl Friberg v Kristjan Tamm | 6-3,6-2 |
| ITF Finland F3 | 2018/08/13 07:00 | Kristjan Tamm v George Botezan | 2-6,6-4,6-2 |
| ITF Finland F2 | 2018/08/08 08:00 | Kristjan Tamm v Karl Friberg | 4-6,3-6 |
| ITF Finland F2 | 2018/08/07 08:00 | Lorenzo Bocchi v Kristjan Tamm | 3-6,2-6 |
| ITF Finland F2 Qual | 2018/08/05 08:00 | Kristjan Tamm v Gabriele Moghini | 4-6,6-3,6-3 |
| ITF Finland F1 | 2018/07/30 07:00 | Mattias Siimar v Kristjan Tamm | 6-1,6-2 |
| Challenger Tampere | 2018/07/21 13:55 | Kristjan Tamm v Nik Razborsek | 6-2,3-6,6-7 |
| ITF Estonia F1 | 2018/07/17 07:00 | Emil Ruusuvuori v Kristjan Tamm | 6-3,5-7,6-3 |