Stadium: Opatija 2 Round: 60 Ground: Clay
| ITF Croatia F3 | 2018/03/19 09:00 | Lukas Krainer v Andreja Petrovic | 6-3,6-3 |
| ITF Croatia F2 | 2018/03/13 11:15 | Lukas Krainer v David Perez Sanz | 6-3,1-6,3-6 |
| ITF Turkey F8 | 2018/02/24 09:30 | Lukas Krainer v Christian Samuelsson | 2-6,4-6 |
| ITF Turkey F7 | 2018/02/18 09:00 | Lukas Krainer v Ivan Davydov | 4-6,5-7 |
| ITF Turkey F7 | 2018/02/17 11:00 | Yuichiro Inui v Lukas Krainer | 2-6,1-6 |
| ITF Turkey F6 | 2018/02/11 06:00 | Daniel Appelgren v Lukas Krainer | 6-1,6-0 |
| ITF Turkey F6 | 2018/02/10 09:00 | Lukas Krainer v Vincentiu A Niculescu | 3-6,6-4,6-2 |
| ITF Turkey F47 Qual | 2017/12/09 06:45 | George Tsivadze v Lukas Krainer | 6-3,6-1 |
| ITF Croatia F3 | 2018/03/19 09:00 | David Martirosian v Marcell Bartakovics | 2-6,2-6 |
| ITF Czech Republic F11 Qual | 2017/11/19 13:00 | Alessandro Ricci v Marcell Bartakovics | 7-6,7-6 |
| ITF Hungary F8 | 2017/09/06 11:30 | Zdenek Kolar v Marcell Bartakovics | 6-0,6-2 |
| ITF Hungary F8 | 2017/09/05 14:25 | Alexander Shevchenko v Marcell Bartakovics | 2-6,2-6 |
| ITF Hungary F8 Qual | 2017/09/04 09:00 | Daniel Kopeinigg v Marcell Bartakovics | 4-6,4-6 |
| ITF Hungary F8 Qual | 2017/09/03 07:30 | Patrik Jancovic v Marcell Bartakovics | 4-6,3-6 |
| ITF Hungary F7 | 2017/08/29 08:00 | Milan Drinic v Marcell Bartakovics | 6-2,1-6,7-6 |
| ITF Hungary F6 Qual | 2017/08/21 09:55 | Laszlo Szendroi v Marcell Bartakovics | 6-1,1-6,6-4 |