| ITF Macedonia F2 | 2017/08/03 07:30 | Stergiou, Ioannis v Cungu, Rrezart | 0-6,6-7 |
| Coupe Davis | 2017/04/08 10:55 | Stergiou, Ioannis v Cungu, Rrezart | 5-7,0-6 |
| Coupe Davis | 2018/04/05 08:00 | Lazdins, Arturs v Cungu, Rrezart | 3-6,1-6 |
| Coupe Davis | 2018/04/04 07:00 | Cungu, Rrezart v Asatryan, Torgom | 6-3,6-0 |
| San Francisco, USA, Qualifying | 2018/02/04 22:20 | Cungu, Rrezart v Karue Sell | 3-6,1-6 |
| San Francisco, USA, Qualifying | 2018/02/03 23:10 | Michael Zhu v Cungu, Rrezart | 6-4,4-6,2-6 |
| ITF USA F3 | 2018/01/09 15:00 | Pla Malfeito, Jaume v Cungu, Rrezart | 6-3,6-3 |
| ITF Tunisia F32 | 2017/10/25 10:00 | Toledo Bague, Pol v Cungu, Rrezart | 6-2,6-1 |
| ITF Tunisia F31 | 2017/10/18 10:40 | Oriol Roca Batalla v Cungu, Rrezart | 6-3,6-4 |
| Serbia F5, Singles | 2017/09/07 07:00 | Bensoussan, Samuel v Cungu, Rrezart | 7-5,6-0 |
| Coupe Davis | 2018/04/05 09:15 | Stergiou, Ioannis v Khachatryan, Sedrak | 6-1,6-3 |
| Coupe Davis | 2018/04/04 07:00 | Grinvalds, Roberts v Stergiou, Ioannis | 0-6,4-6 |
| ITF Greece F5 | 2018/03/29 10:15 | Stergiou, Ioannis v Tomas Barrios Vera | 3-6,3-6 |
| ITF Greece F5 | 2018/03/28 06:00 | Kalovelonis, Markos v Stergiou, Ioannis | 3-6,2-6 |
| ITF Greece F4 | 2018/03/21 12:45 | Petr Michnev v Stergiou, Ioannis | 6-4,6-4 |
| ITF Greece F3 | 2018/03/14 08:00 | Baldi, Filippo v Stergiou, Ioannis | 6-7,6-2,6-2 |
| ITF Greece F2 | 2018/03/08 10:25 | Sude, Jakob v Stergiou, Ioannis | 7-6,6-1 |
| ITF Greece F2 | 2018/03/06 08:00 | Stergiou, Ioannis v Konecny, Michal | 7-5,6-0 |