Stadium: Court 7 Round: 45 Ground: Hardcourt indoor
| ITF Finland F3 Qual | 2016/08/12 22:00 | Karl Kiur Saar v Marcus Mansson | 0-6,2-6 |
| ITF Finland F4 | 2018/11/13 11:00 | Karl Kiur Saar v Louis Wessels | 3-6,6-7 |
| ITF Finland F4 | 2018/11/11 10:30 | Karl Kiur Saar v Johannes Seeman | 6-4,6-2 |
| ITF Finland F4 | 2018/11/10 11:35 | Karl Kiur Saar v Jason Sormunen | 6-2,6-4 |
| ITF Estonia F3 | 2018/11/07 10:25 | Karl Kiur Saar v Joshua Paris | 3-6,7-6,4-6 |
| ITF Estonia F3 | 2018/11/06 14:30 | Christoffer Solberg v Karl Kiur Saar | 6-7,4-6 |
| ITF Estonia F2 | 2018/11/01 12:00 | Vladimir Ivanov v Karl Kiur Saar | 6-1,6-3 |
| ITF Estonia F2 | 2018/10/31 10:50 | Karl Kiur Saar v Maxim Ratniuk | 7-5,6-1 |
| ITF Estonia F2 | 2018/10/30 13:15 | Karl Kiur Saar v Daniil Glinka | 6-3,6-4 |
| ITF Germany F8 Qual | 2018/07/15 14:00 | Karlo Cubelic v Marcus Mansson | 6-2,7-6 |
| ITF Germany F8 Qual | 2018/07/15 10:00 | James Allemby v Marcus Mansson | 4-6,5-7 |
| ITF Spain F15 Qual | 2018/06/10 07:00 | Marcus Mansson v Ignacio B Alia | 4-6,4-6 |
| ITF Sweden F3 Qual | 2018/05/20 11:25 | Marcus Mansson v Jakob Arvidsson Ehn | 7-5,7-6 |
| ITF Sweden F3 Qual | 2018/05/19 12:55 | Marcus Mansson v Jesper Klov Nilsson | 6-3,6-3 |
| ITF Sweden F2 Qual | 2018/05/12 08:00 | Marcus Mansson v Almir Nokic | 3-6,6-2,1-6 |
| ITF Sweden F1 | 2018/05/08 12:05 | Marcus Mansson v Patrik Brydolf | 4-6,4-6 |
| ITF France F6 Qual | 2018/03/17 08:30 | Marcus Mansson v Steven Broge | 6-1,2-6,6-2 |