Stadium: Court 1 Round: 25 Ground: Clay
| ITF Austria F1 | 2018/07/04 11:10 | Matthias Haim v Lukas Ollert | 6-4,6-3 |
| ITF Austria F1 | 2018/07/02 11:10 | Lukas Ollert v Martins Rocens | 6-1,6-1 |
| ITF Tunisia F25 | 2018/06/26 10:15 | Lukas Ollert v Gabi Adrian Boitan | 1-6,1-6 |
| ITF Italy F15 | 2018/06/20 18:00 | Lukas Ollert v Nicolo Turchetti | 6-3,1-6,5-7 |
| ITF Sweden F2 | 2018/05/17 12:35 | Lukas Ollert v Alexander Ritschard | 1-6,1-6 |
| ITF Sweden F2 | 2018/05/16 10:15 | Lukas Ollert v Jonas Trinker | 6-1,6-4 |
| ITF Sweden F2 | 2018/05/15 11:40 | Lukas Ollert v Nick Chappell | 6-2,6-7,7-5 |
| ITF Tunisia F17 | 2018/05/02 10:40 | Mustafa Ibraimi v Lukas Ollert | 6-3,6-4 |
| ITF Austria F1 | 2018/07/03 09:20 | Alexander Erler v Mike Urbanija | 1-6,6-4,3-6 |
| ITF Sri Lanka F1 | 2018/06/15 06:00 | Alexander Erler v Alexander Zhurbin | 5-7,1-6 |
| ITF Sri Lanka F1 | 2018/06/14 07:30 | Ignacio Carou v Alexander Erler | 6-4,4-6,1-6 |
| ITF Sri Lanka F1 | 2018/06/13 04:00 | Naoki Takeda v Alexander Erler | 5-7,6-7 |
| ITF Sri Lanka F1 | 2018/06/11 07:30 | Calum Puttergill v Alexander Erler | 3-6,1-6 |
| ITF Bosnia and Herzegovina F1 | 2018/05/18 08:00 | Manuel Guinard v Alexander Erler | 6-2,6-1 |
| ITF Bosnia and Herzegovina F1 | 2018/05/17 08:00 | Fran Zvonimir Zgombic v Alexander Erler | 2-6,3-6 |
| ITF Bosnia and Herzegovina F1 | 2018/05/15 09:40 | Filip Maric v Alexander Erler | 5-7,2-6 |