Stadium: Court 1 Round: 25 Ground: Hardcourt indoor
| ITF Germany F13 | 2016/10/06 11:50 | Lukas Ollert v David Poljak | 6-7,3-6 |
| ITF Sweden F4 | 2018/09/25 11:00 | George Loffhagen v Lukas Ollert | 6-1,6-3 |
| ITF Great Britain F5 | 2018/09/18 17:00 | Lukas Ollert v Anton Matusevich | 4-6,5-7 |
| ITF Great Britain F4 | 2018/09/13 11:10 | Lukas Ollert v Jack Draper | 6-2,3-6,4-6 |
| ITF Great Britain F4 | 2018/09/12 10:00 | Lukas Ollert v Samm Butler | 6-2,6-1 |
| ITF Great Britain F4 | 2018/09/11 13:00 | Lukas Ollert v Felix Gill | 6-2,6-0 |
| ITF France F16 | 2018/09/07 13:40 | Corentin Denolly v Lukas Ollert | 6-3,7-5 |
| ITF France F16 | 2018/09/06 09:00 | Lukas Ollert v Christopher Diaz-Figueroa | 6-4,6-4 |
| ITF France F16 | 2018/09/04 07:30 | Arthur Reymond v Lukas Ollert | 7-5,4-6,2-6 |
| Challenger Orleans Qual | 2018/09/22 17:30 | David Poljak v Yannick Jankovits | 3-6,4-6 |
| Challenger Istanbul | 2018/09/10 07:30 | David Poljak v Tak Khunn Wang | 6-4,6-7,3-6 |
| Challenger Istanbul | 2018/09/09 10:10 | David Poljak v Timur Khabibulin | 6-4,6-2 |
| Challenger Zhangjiagang | 2018/09/02 06:50 | Di Wu v David Poljak | 6-3,6-4 |
| ITF Belarus F3 | 2018/08/24 07:00 | Francesco Vilardo v David Poljak | 6-4,3-6,6-2 |
| ITF Belarus F3 | 2018/08/23 07:00 | Giorgio Ricca v David Poljak | 2-6,4-6 |
| ITF Belarus F3 | 2018/08/22 09:35 | George Tsivadze v David Poljak | 3-6,3-6 |
| ITF Belarus F3 | 2018/08/21 07:00 | Dzianis Zharyn v David Poljak | 1-6,1-6 |