Stadium: Court 4 Round: 25 Ground: Clay
| ITF Austria F4 Qual | 2018/07/21 10:00 | Jonathan Stenberg v Stefano Battaglino | 1-6,7-6,3-6 |
| ITF Austria F3 | 2018/07/14 07:15 | Lukas Vejvara v Jonathan Stenberg | 7-5,4-6,6-3 |
| ITF Austria F2 | 2018/07/09 12:00 | Johannes Haerteis v Jonathan Stenberg | 6-1,7-5 |
| ITF Austria F2 | 2018/07/08 08:00 | Jonathan Stenberg v Jonathan Morr | 5-7,4-6 |
| ITF Austria F2 | 2018/07/07 08:00 | Jonathan Stenberg v Christian Fellin | 6-1,6-0 |
| ITF Austria F1 | 2018/06/30 11:00 | Jonathan Stenberg v Laurin Aerne | 0-6,6-7 |
| ITF Sweden F3 | 2018/05/23 09:15 | Manuel Guinard v Jonathan Stenberg | 6-0,6-0 |
| ITF Sweden F3 | 2018/05/22 11:35 | Milos Sekulic v Jonathan Stenberg | 6-7,6-7 |
| ITF Austria F1 | 2018/07/01 07:30 | Sven Lah v Jakob Aichhorn | 6-3,6-4 |
| ITF Austria F1 | 2018/06/30 11:00 | Sven Lah v Vital Flurin Leuch | 6-1,6-0 |
| ITF Czech Republic F4 | 2018/06/27 11:55 | Peter Torebko v Sven Lah | 7-5,6-3 |
| ITF Czech Republic F4 | 2018/06/25 09:40 | Danylo Kalenichenko v Sven Lah | 4-6,4-6 |
| ITF Czech Republic F4 Qual | 2018/06/24 11:35 | Gabor Borsos v Sven Lah | 4-6,5-7 |
| ITF Czech Republic F4 Qual | 2018/06/23 08:00 | Roberto Rosales v Sven Lah | 4-6,1-6 |
| ITF Czech Republic F4 Qual | 2018/06/23 08:00 | Eric Tudor A.Pandelea v Sven Lah | 1-6,0-6 |
| ITF Hungary F4 Qual | 2018/06/11 08:00 | Strahinja Rakic v Sven Lah | 7-6,6-3 |