Stadium: Court 2 Round: 25 Ground: Clay
| ITF Tunisia F17 | 2018/05/02 10:40 | Mustafa Ibraimi v Lukas Ollert | 6-3,6-4 |
| ITF Bahrain F1 | 2018/03/21 08:00 | Adrian Obert v Lukas Ollert | 2-6,3-6 |
| ITF Bahrain F1 | 2018/03/20 10:45 | Pak Long Yeung v Lukas Ollert | 3-6,4-6 |
| ITF Russia F3 | 2018/03/14 10:55 | Roman Safiullin v Lukas Ollert | 6-2,6-1 |
| ITF Russia F3 | 2018/03/13 10:20 | Gary Kushnirovich v Lukas Ollert | 0-6,6-7 |
| ITF Kazakhstan F2 | 2018/02/21 07:35 | Nikola Milojevic v Lukas Ollert | 6-7,6-3,6-4 |
| ITF Kazakhstan F2 | 2018/02/20 07:05 | Artem Dubrivnyy v Lukas Ollert | 6-7,5-7 |
| ITF Kazakhstan F1 | 2018/02/16 06:40 | Lukas Ollert v Mikhail Fufygin | 3-6,4-6 |
| ITF Sweden F1 | 2018/05/10 10:05 | Mike Urbanija v Nick Chappell | 6-1,6-3 |
| ITF Sweden F1 | 2018/05/09 09:30 | Karl Friberg v Nick Chappell | 2-6,3-6 |
| ITF Sweden F1 Qual | 2018/05/08 14:35 | Nick Chappell v Yan Sabanin | 6-1,6-3 |
| ITF USA F12 | 2018/04/25 18:00 | Nick Chappell v Samuel Bensoussan | 0-6,6-7 |
| ITF USA F11 | 2018/04/19 14:00 | Eduardo Agustin Torre v Nick Chappell | 7-6,6-4 |
| ITF USA F11 | 2018/04/18 14:00 | Nick Chappell v Daniel Fainblum | 6-1,6-2 |
| Challenger San Francisco Qual | 2018/02/03 22:30 | Nick Chappell v Jack Molloy | 6-4,3-6,2-6 |
| Challenger Dallas Qual | 2018/01/28 18:15 | Dominik Koepfer v Nick Chappell | 6-4,6-4 |