Stadium: Court 7 Round: 54 Ground: Clay
| ITF M15 Belgrade | 2019/07/05 12:25 | Fabian Marozsan v Celebic, Ljubomir | 6-2,7-5 |
| ITF M15 Belgrade | 2019/07/04 12:15 | Celebic, Ljubomir v Hubner, Edward | 7-5,6-4 |
| ITF M15 Belgrade | 2019/07/03 09:55 | Roko Horvat v Celebic, Ljubomir | 2-6,3-6 |
| ITF M25 Kiseljak | 2019/05/30 09:15 | Celebic, Ljubomir v Tepavac, Marko | 3-6,3-6 |
| ITF M25 Kiseljak | 2019/05/28 08:00 | Celebic, Ljubomir v Stepanic, Patrik | 6-1,6-3 |
| ITF - M15 Brcko | 2019/05/24 09:00 | Dubrivnyy, Artem v Celebic, Ljubomir | 6-1,6-2 |
| ITF - M15 Brcko | 2019/05/23 10:10 | Celebic, Ljubomir v Podzus, Martins | 6-4,6-4 |
| ITF - M15 Brcko | 2019/05/22 11:35 | Celebic, Ljubomir v Gorazd Srbljak | 1-6,7-6,6-0 |
| Serbia F5, Singles | 2018/09/05 13:10 | Marcell Bartakovics v Lazar Vojinovic | 6-4,6-4 |
| ITF Netherlands F1 Qual | 2018/06/24 09:00 | van Der Horst, Tim v Lazar Vojinovic | 7-5,2-6,6-2 |
| ITF Hungary F3 Qual | 2018/05/20 08:00 | Lazar Vojinovic v Maruscak, Matej | 3-6,3-6 |
| ITF Bosnia and Herzegovina F1 | 2018/05/17 09:40 | Lazar Vojinovic v Juan Pablo Paz | 1-6,1-6 |
| ITF Bosnia and Herzegovina F1 | 2018/05/15 08:00 | Lazar Vojinovic v Jandric, Darko | 6-4,6-4 |
| Turkey F17, Singles Qualifying | 2018/04/30 07:30 | Voinea, Christian v Lazar Vojinovic | 6-3,7-6 |
| Turkey F17, Singles Qualifying | 2018/04/29 07:30 | Lazar Vojinovic v Pirolt, Pietro | 7-5,6-2 |
| Turkey F16, Singles Qualifying | 2018/04/22 09:30 | Lazar Vojinovic v Kolly, Bastien | 6-7,6-7 |