Stadium: Court 2 Round: 54 Ground: Hardcourt indoor
| ITF Sweden F4 | 2018/09/26 15:40 | Michal Konecny v Niklas Johansson | 7-5,6-2 |
| ITF Sweden F4 | 2018/09/24 14:20 | Karl Kiur Saar v Niklas Johansson | 1-6,2-6 |
| ITF Sweden F4 | 2018/09/23 09:00 | Niklas Johansson v Arvid Nordquist | 6-4,6-2 |
| ITF Sweden F4 | 2018/09/22 09:00 | Niklas Johansson v Eric Davidsson | 6-1,6-2 |
| Challenger Istanbul | 2018/09/08 10:55 | Timur Khabibulin v Niklas Johansson | 6-7,6-1,6-0 |
| ITF Belarus F3 | 2018/08/20 07:30 | Niklas Johansson v Sarp Agabigun | 3-6,0-6 |
| ITF Belarus F2 | 2018/08/11 08:50 | Niklas Johansson v Aliaksandr Bulitski | 5-7,2-6 |
| ITF Belarus F1 | 2018/08/06 07:00 | Mert Alkaya v Niklas Johansson | 7-6,4-6,6-4 |
| ITF Sweden F2 Qual | 2018/05/13 10:15 | Morgan Johansson v Anton Ornberg | 6-3,6-2 |
| ITF Sweden F2 Qual | 2018/05/12 10:30 | Oliver Andersson v Anton Ornberg | 5-7,2-6 |
| ITF Sweden F1 Qual | 2018/05/05 08:00 | Anton Ornberg v Sam Taylor | 1-6,0-6 |