Stadium: La Foret 4 Round: 45 Ground: Hardcourt indoor
| Challenger - Istanbul | 2018/09/10 07:30 | Tim Van Rijthoven v Tobias Simon | 6-3,7-6 |
| Challenger - Istanbul | 2018/09/09 09:00 | Vladimir Polyakov v Tobias Simon | 0-6,3-6 |
| Challenger - Istanbul | 2018/09/08 07:00 | Isaac Stoute v Tobias Simon | 3-6,6-4,4-6 |
| Challenger Mallorca | 2018/08/28 09:30 | Tobias Simon v Sergio Gutierrez-Ferrol | 6-3,6-2 |
| Challenger Mallorca | 2018/08/27 11:10 | Tobias Simon v Hugo Grenier | 7-5,2-6,7-6 |
| Challenger Mallorca | 2018/08/26 15:45 | Tobias Simon v Federico Zeballos | 7-6,7-6 |
| Challenger Mallorca | 2018/08/26 10:45 | Yannick Mertens v Tobias Simon | 7-6,4-6,4-6 |
| Challenger Pullach Qual | 2018/08/04 15:25 | Zizou Bergs v Tobias Simon | 6-4,7-6 |
| Challenger Pullach | 2018/08/09 11:00 | Carlos Berlocq v Tim Puetz | 7-6,7-5 |
| Challenger Pullach | 2018/08/07 11:35 | Tim Puetz v Casper Ruud | 6-2,3-6,7-6 |
| ATP Stuttgart Qual | 2018/06/10 11:00 | Tim Puetz v Matteo Viola | 3-6,6-7 |
| ATP Stuttgart Qual | 2018/06/09 09:00 | Lukas Lacko v Tim Puetz | 7-6,5-7,1-6 |
| Challenger Loughborough | 2018/05/24 11:30 | Tim Puetz v Hiroki Moriya | 5-7,0-6 |
| Challenger Loughborough | 2018/05/22 09:00 | Tim Puetz v Marek Jaloviec | 7-6,6-1 |
| Challenger - Heilbronn | 2018/05/17 12:50 | Oscar Otte v Tim Puetz | 7-5,6-7,7-6 |
| Challenger - Heilbronn | 2018/05/15 18:05 | Tim Puetz v Norbert Gombos | 6-4,4-6,6-3 |