Stadium: Court 3 Round: 26 Ground: Clay
| ITF Serbia F2 | 2018/08/14 10:05 | Katic, Dejan v Subanovic, Nemanja | 6-1,6-7,6-4 |
| ITF Serbia F1 | 2018/08/08 09:50 | Katic, Dejan v Andrea Picchione | 4-6,6-4,1-6 |
| ITF Ukraine F3 | 2018/05/22 10:45 | Dolgosheyev, Oleg v Katic, Dejan | 6-4,6-3 |
| ITF Ukraine F2 | 2018/05/15 10:55 | Achour, Nazar v Katic, Dejan | 6-3,6-4 |
| ITF Ukraine F1 | 2018/05/09 10:15 | Strelchenko, Daniil v Katic, Dejan | 1-6,6-7 |
| ITF Ukraine F1 | 2018/05/08 13:10 | Shcherba, Vitalii v Katic, Dejan | 7-5,3-6,6-7 |
| ITF Egypt F13 | 2018/04/10 08:00 | Katic, Dejan v Jomby, Tom | 1-6,7-6,3-6 |
| Egypt F12, Singles Qualifying | 2018/04/03 08:00 | Katic, Dejan v Taweel, Issam Haitham | 6-3,3-6,4-6 |
| ITF Serbia F2 | 2018/08/15 12:50 | Roncalli, Simone v Lombe, Harrison | 6-1,6-1 |
| ITF Serbia F1 | 2018/08/12 08:00 | Miljan Zekic v Roncalli, Simone | 6-2,6-4 |
| ITF Serbia F1 | 2018/08/11 10:00 | Ergi Kirkin v Roncalli, Simone | 6-4,6-7,5-7 |
| ITF Serbia F1 | 2018/08/10 08:00 | Roncalli, Simone v Nagy, Peter | 6-3,6-0 |
| ITF Serbia F1 | 2018/08/09 09:00 | Andrea Picchione v Roncalli, Simone | 4-6,3-6 |
| ITF Serbia F1 | 2018/08/07 08:00 | Markovic, Goran v Roncalli, Simone | 1-6,3-6 |
| ITF Italy F19 | 2018/07/18 12:25 | Ceppellini, Alessandro v Roncalli, Simone | 6-1,6-2 |
| ITF Italy F18 | 2018/07/09 09:30 | Maxime Chazal v Roncalli, Simone | 6-4,7-6 |