Stadium: Court 6 Round: 25 Ground: Clay
| Turkey F8, Singles Qualifying | 2018/03/02 07:00 | Cacic, Nikola v Oriol Roca Batalla | 7-6,2-6,4-6 |
| Turkey F8, Singles Qualifying | 2018/03/01 11:55 | Cacic, Nikola v Camilo Ugo Carabelli | 6-3,6-2 |
| Turkey F8, Singles Qualifying | 2018/03/01 07:00 | Cacic, Nikola v Felipe Meligeni Rodrigues Alves | 6-3,7-6 |
| Challenger Chennai Qual | 2018/02/10 09:30 | Cacic, Nikola v R Prabodh, Suraj | 6-3,7-5 |
| Challenger Budapest Qual | 2018/02/05 11:55 | Krawietz, Kevin v Cacic, Nikola | 6-2,6-7,7-6 |
| Challenger Budapest Qual | 2018/02/04 12:40 | Cacic, Nikola v Jankovits, Yannick | 6-4,6-1 |
| Challenger Budapest Qual | 2018/02/03 16:00 | Makk, Peter v Cacic, Nikola | 4-6,5-7 |
| ITF Turkey F47 | 2017/12/15 09:10 | Antonio Massara v Cacic, Nikola | 7-6,6-1 |
| Turkey F8, Singles Qualifying | 2018/02/24 09:30 | Busch, Ruben v Onoda, Ken | 2-6,2-6 |
| ITF Tunisia F36 | 2017/11/18 08:00 | Busch, Ruben v Philip Hjorth | 1-6,4-6 |
| ITF Tunisia F35 | 2017/11/11 11:00 | Giuseppe Caparco v Busch, Ruben | 6-3,6-4 |
| ITF Turkey F39 | 2017/10/14 07:00 | Vicentiu Andrei Niculescu v Busch, Ruben | 6-7,6-3,6-4 |
| ITF Spain F31 Qual | 2017/09/23 09:30 | Mas Mascolo, Adria v Busch, Ruben | 6-0,6-0 |
| ITF Turkey F34 | 2017/09/09 10:30 | Sandro Kopp v Busch, Ruben | 6-2,6-1 |
| ITF Turkey F33 | 2017/09/02 11:00 | Busch, Ruben v Philip Hjorth | 2-6,0-6 |
| Tunisia F10, Singles Qualifying | 2017/03/11 08:00 | Busch, Ruben v Benedetti, Giuliano | 0-6,0-6 |