Stadium: Court 1 Round: 54
| ITF Sweden F2 | 2018/05/16 10:15 | Lukas Ollert v Jonas Trinker | 6-1,6-4 |
| ITF Sweden F2 | 2018/05/14 11:50 | Jonas Trinker v Linus Frost | 6-2,7-6 |
| ITF Turkey F17 | 2018/05/03 07:30 | Juan Pablo Varillas v Jonas Trinker | 6-2,6-1 |
| ITF Turkey F17 | 2018/05/02 07:30 | Jonas Trinker v Gabriel Schmidt | 6-4,3-6,7-6 |
| ITF Turkey F16 | 2018/04/21 09:30 | Gorazd Srbljak v Jonas Trinker | 6-4,6-3 |
| ITF Spain F2 | 2018/01/22 09:00 | Marc Fornell-Mestres v Jonas Trinker | 7-6,6-0 |
| ITF Spain F2 | 2018/01/21 11:30 | Oscar M Cornella 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 Sweden F2 | 2018/05/14 11:25 | Jonathan Stenberg v Adam Heinonen | 3-6,6-1,6-3 |
| ITF Sweden F2 Qual | 2018/05/13 08:00 | Almir Nokic v Adam Heinonen | 6-3,2-6,3-6 |
| ITF Sweden F1 Qual | 2018/05/05 08:00 | Adam Heinonen v Morgan Johansson | 3-6,7-6,3-6 |