Stadium: Court 2 Round: 26 Ground: Clay
| ITF Sweden F2 | 2018/05/15 11:40 | Ollert, Lukas v Nick Chappell | 6-2,6-7,7-5 |
| Tunisia F17, Singles Qualifying | 2018/05/02 10:40 | Ibraimi, Mustafa v Ollert, Lukas | 6-3,6-4 |
| ITF Bahrain F1 | 2018/03/21 08:00 | Obert, Adrian v Ollert, Lukas | 2-6,3-6 |
| ITF Bahrain F1 | 2018/03/20 10:45 | Yeung, Pak Long v Ollert, Lukas | 3-6,4-6 |
| ITF Russia F3 | 2018/03/14 10:55 | Roman Safiullin v Ollert, Lukas | 6-2,6-1 |
| ITF Russia F3 | 2018/03/13 10:20 | Kushnirovich, Gary v Ollert, Lukas | 0-6,6-7 |
| Kazakhstan F2, Singles | 2018/02/21 07:35 | Nikola Milojevic v Ollert, Lukas | 6-7,6-3,6-4 |
| Kazakhstan F2, Singles | 2018/02/20 07:05 | Dubrivnyy, Artem v Ollert, Lukas | 6-7,5-7 |
| ITF Sweden F2 | 2018/05/14 11:50 | Jonas Trinker v Frost, Linus | 6-2,7-6 |
| Turkey F17, Singles Qualifying | 2018/05/03 07:30 | Juan Pablo Varillas v Jonas Trinker | 6-2,6-1 |
| Turkey F17, Singles Qualifying | 2018/05/02 07:30 | Jonas Trinker v Schmidt, Gabriel | 6-4,3-6,7-6 |
| Turkey F16, Singles Qualifying | 2018/04/21 09:30 | Gorazd Srbljak v Jonas Trinker | 6-4,6-3 |
| ITF Spain F2 | 2018/01/22 09:00 | Fornell-Mestres, Marc v Jonas Trinker | 7-6,6-0 |
| ITF Spain F2 | 2018/01/21 11:30 | Mancineiras Cornella, Oscar v Jonas Trinker | 1-6,4-6 |
| ITF Spain F2 | 2018/01/20 13:30 | Ivan Marrero Curbelo v Jonas Trinker | 7-6,4-6,3-6 |
| ITF Spain F1 | 2018/01/15 09:00 | Jonas Trinker v Yatsik, Yahor | 6-4,3-6,3-6 |