Stadium: Court 4 Round: 54 Ground: Hardcourt indoor
| Challenger Pullach Qual | 2018/08/04 12:10 | Alen Avidzba v Christian Seraphim | 6-3,6-4 |
| ITF Germany F9 | 2018/07/23 10:00 | Christian Seraphim v Constantin Schmitz | 3-6,4-6 |
| ITF Germany F9 | 2018/07/22 15:30 | Christian Seraphim v Oscar Moraing | 6-4,7-6 |
| ITF Germany F9 | 2018/07/22 08:00 | Daniel Kopeinigg v Christian Seraphim | 4-6,3-6 |
| ITF Austria F3 | 2018/07/14 07:15 | Edward Hubner v Christian Seraphim | 6-2,5-7,7-5 |
| ITF USA F15 | 2018/06/19 14:00 | Petros Chrysochos v Christian Seraphim | 3-6,6-3,6-3 |
| ITF USA F13 | 2018/06/12 16:40 | Alexander Sarkissian v Christian Seraphim | 6-4,6-4 |
| ITF USA F13 Qual | 2018/06/11 16:20 | Christian Seraphim v Felix Corwin | 6-3,6-3 |
| ITF Finland F2 Qual | 2018/08/04 07:00 | Roni Rikkonen v Martins Rocens | 2-6,4-6 |
| ITF Finland F1 Qual | 2018/07/28 07:00 | Roni Rikkonen v Ettore Capello | 3-6,3-6 |
| ITF Finland F4 Qual | 2017/11/12 09:40 | Ville-Petteri Ahti v Roni Rikkonen | 6-1,6-1 |
| ITF Finland F4 Qual | 2017/11/11 08:00 | Jason Sormunen v Roni Rikkonen | 3-6,3-6 |
| ITF Finland F3 Qual | 2017/08/13 10:45 | Karl Kiur Saar v Roni Rikkonen | 6-0,6-0 |
| ITF Finland F2 Qual | 2017/08/05 09:30 | Roni Rikkonen v Igor Rud | 0-6,2-6 |
| Challenger Tampere Qual | 2017/07/22 10:50 | Roni Rikkonen v Ben Patael | 2-6,1-6 |
| Challenger Tampere Qual | 2017/07/22 07:00 | Roni Rikkonen v Artem Strokan | 6-4,6-1 |