Round: 62 Ground: Clay
| ITF Bosnia and Herzegovina F1 Qual | 2018/05/13 10:30 | Valentin Vanta v Bucan, Aleksa | 6-2,4-6,6-3 |
| ITF Bosnia and Herzegovina F2 Qual | 2017/05/28 08:00 | Bucan, Aleksa v Nikolic, Milos | 3-6,2-6 |
| ITF Germany F15 | 2016/10/15 08:00 | Bucan, Aleksa v Nystroem, Patrick | 4-6,3-6 |
| ITF Germany F14 | 2016/10/09 08:00 | Bucan, Aleksa v Dissanayake, Sharmal | 1-6,4-6 |
| ITF Serbia F2 Qual | 2016/07/23 12:00 | Peric, Nebojsa v Bucan, Aleksa | 6-4,6-7,6-3 |
| ITF Austria F1 | 2016/07/03 07:45 | Li, Yuanfeng v Bucan, Aleksa | 7-6,6-3 |
| ITF Serbia F8 Qual | 2015/08/09 10:30 | Wakita, Shunsuke v Bucan, Aleksa | 5-7,6-1,6-2 |
| ITF Serbia F6 | 2015/07/18 12:00 | Bucan, Aleksa v Petrenko, Anatoliy | 4-6,3-6 |
| ITF Bosnia and Herzegovina F1 Qual | 2018/05/13 10:30 | Alexey Aleshchev v Granolic, Stefan | 6-0,6-2 |
| ITF Bosnia and Herzegovina F1 Qual | 2018/05/12 09:00 | Granolic, Stefan v Milakovic, Milos | 6-2,6-1 |