Stadium: Court 4 Round: 25 Ground: Clay
| ITF M15 Opatija | 2019/03/28 10:40 | Nerman Fatic v Ljubomir Celebic | 6-2,6-1 |
| ITF M15 Opatija | 2019/03/27 11:30 | Ljubomir Celebic v Robin Stanek | 6-2,6-1 |
| ITF M15 Opatija | 2019/03/26 09:05 | Ljubomir Celebic v Tim Heger | 6-3,6-4 |
| ITF M15 Opatija | 2019/03/25 10:05 | Ljubomir Celebic v Pavle Daljev | 6-3,6-4 |
| ITF M15 Rovinj | 2019/03/19 10:30 | Gabor Borsos v Ljubomir Celebic | 1-6,6-4,10-5 |
| ITF M15 Rovinj | 2019/03/18 09:00 | Luka Mrsic v Ljubomir Celebic | 4-6,1-6 |
| ITF M15 Porec | 2019/03/14 11:35 | Ljubomir Celebic v Andrea Basso | 6-3,3-6,3-6 |
| ITF M15 Porec | 2019/03/13 09:00 | Mate Valkusz v Ljubomir Celebic | 5-7,1-6 |