Stadium: Clay 1 Round: 62 Ground: Clay
| ITF Turkey F28 | 2018/09/17 07:30 | Maurizio Speziali v Berke Eser Coskun | 6-2,6-1 |
| ITF Turkey F4 | 2018/01/27 07:30 | Sorin Andrei Iordache v Berke Eser Coskun | 6-1,6-2 |
| ITF Turkey F45 Qual | 2017/11/26 06:30 | Berke Eser Coskun v Luis Diego Chavez Villalpando | 2-6,0-6 |
| ITF Turkey F45 Qual | 2017/11/25 06:30 | Berke Eser Coskun v George Kennedy | 6-1,6-2 |
| ITF Turkey F44 | 2017/11/18 06:45 | Berke Eser Coskun v Francisco Vittar | 1-6,1-6 |
| Challenger Istanbul Qual | 2017/09/09 07:00 | Koray Kirci v Berke Eser Coskun | 3-6,6-3,6-4 |
| ITF Turkey F27 | 2017/07/26 07:00 | Berke Eser Coskun v Cristian Carli | 1-6,1-6 |
| ITF Turkey F27 | 2017/07/24 13:00 | Osmancan Soyler v Berke Eser Coskun | 1-6,2-6 |
| ITF Turkey F30 | 2018/10/04 07:00 | Lucas Hellfritsch v Michael Vrbensky | 4-6,2-6 |
| ITF Turkey F30 | 2018/10/03 08:50 | Vadim Alekseenko v Lucas Hellfritsch | 4-6,6-3,2-6 |
| ITF Turkey F30 | 2018/10/01 07:30 | Mert Alkaya v Lucas Hellfritsch | 3-6,2-6 |
| ITF Netherlands F6 | 2018/08/26 07:00 | Justin Butsch v Lucas Hellfritsch | 6-2,6-2 |
| ITF Netherlands F6 | 2018/08/25 08:00 | Aneil Persad v Lucas Hellfritsch | 2-6,2-6 |
| ITF Netherlands F5 | 2018/08/21 09:55 | Nik Razborsek v Lucas Hellfritsch | 6-4,7-6 |
| ITF Netherlands F5 | 2018/08/19 10:00 | Philipp Schroll v Lucas Hellfritsch | 2-6,1-6 |
| ITF Netherlands F5 | 2018/08/18 08:00 | Lucas Hellfritsch v Oscar Moraing | 2-6,7-6,6-1 |