Stadium: Opatija 2 Round: 29 Ground: Clay
| ITF Croatia F3 MD | 2018/03/23 14:30 | Celebic/Nagy v Kowalczyk/Kozielski | 6-2,6-2 |
| ITF Croatia F3 MD | 2018/03/22 14:10 | Celebic/Nagy v Grahovac/Kajin | 6-1,6-2 |
| ITF Croatia F3 MD | 2018/03/20 14:25 | Ιβάν Σαμπάνοφ/Ματέι Σαμπάνοφ v Celebic/Nagy | 6-7,2-6 |
| ITF Tunisia F2 MD | 2018/01/19 13:20 | Celebic/Nagy v Carli/Turchetti | 2-6,6-7 |
| ITF Tunisia F2 MD | 2018/01/18 12:55 | Μάρκο Μπορτολότι/Τζουλιαν Οκλεπο v Celebic/Nagy | 5-7,6-4,9-11 |
| ITF Tunisia F2 MD | 2018/01/16 13:15 | Celebic/Nagy v Dorozhkin/Munafo | 6-4,6-2 |
| ITF Tunisia F1 MD | 2018/01/10 13:35 | Celebic/Nagy v Gutierrez-Ferrol/Perez Contri | 4-6,5-7 |
| ITF Croatia F3 MD | 2018/03/23 13:30 | Lazarov/Vidak v Puches/Sant'anna | 2-6,7-6,5-10 |
| ITF Croatia F3 MD | 2018/03/22 15:15 | Lemstra/Prechtel v Puches/Sant'anna | 1-6,1-6 |
| ITF Croatia F3 MD | 2018/03/20 11:45 | Bachmaier/Neuhauser v Puches/Sant'anna | 0-6,2-6 |