| ITF Germany F5 | 2015/06/28 08:00 | David Simunek v Hendrik Jebens | 6-2,6-2 |
| ITF Belgium F3 | 2015/06/23 13:15 | Romain Barbosa v David Simunek | 3-6,2-6 |
| ITF Czech Republic F1 Qual | 2015/05/10 08:00 | David Simunek v Szymon Walkow | 7-6,1-6,2-6 |
| ITF Greece F9 | 2015/04/30 07:00 | Erik Crepaldi v David Simunek | 6-1,7-6 |
| ITF Greece F9 | 2015/04/29 10:05 | David Simunek v Keisuke Watanuki | 6-4,6-2 |
| ITF Greece F5 | 2015/04/25 07:00 | David Simunek v Hiroyasu Ehara | 1-6,2-6 |
| ITF Greece F5 | 2015/04/23 07:00 | David Simunek v Peter Goldsteiner | 6-2,6-1 |
| ITF Greece F5 | 2015/04/22 07:00 | Petros Chrysochos v David Simunek | 6-1,2-6,4-6 |
| ITF Germany F5 | 2015/06/28 08:00 | Nico Mertens v Oliver Mrose | 7-5,6-4 |
| ITF Germany F5 | 2015/06/28 08:00 | Nico Mertens v Hendrik Maier | 6-4,6-0 |
| ITF Netherlands F5 | 2014/08/20 09:50 | Nico Mertens v Alban Meuffels | 3-6,0-6 |
| ITF Netherlands F5 | 2014/08/19 08:00 | Nico Mertens v Mark-Flavius Andres | 6-2,3-6,6-3 |