Stadium: Hard 1 Round: 25 Ground: Hardcourt outdoor
| ITF Greece F6 | 2018/10/30 10:55 | Stergiou, Ioannis v Rapp, Austin | 5-7,5-7 |
| ITF Italy F20 Qual | 2018/07/22 13:00 | Stergiou, Ioannis v Capello, Ettore | 6-7,5-7 |
| ITF Italy F20 Qual | 2018/07/21 07:30 | Stergiou, Ioannis v Elio Jose Ribeiro Lago | 4-6,6-2,6-4 |
| ITF Italy F19 | 2018/07/16 19:00 | Tomas Martin Etcheverry v Stergiou, Ioannis | 6-2,7-6 |
| ITF Bosnia and Herzegovina F2 | 2018/05/25 08:00 | Nerman Fatic v Stergiou, Ioannis | 6-4,6-0 |
| ITF Bosnia and Herzegovina F2 | 2018/05/24 11:35 | Stergiou, Ioannis v Kalenichenko, Danylo | 6-1,7-6 |
| ITF Bosnia and Herzegovina F2 | 2018/05/23 12:30 | Jandric, Darko v Stergiou, Ioannis | 0-6,3-6 |
| ITF Bosnia and Herzegovina F1 | 2018/05/15 08:00 | Stergiou, Ioannis v Hajek, Petr | 6-1,3-6,6-7 |
| ITF Greece F7 | 2018/11/05 07:30 | Kapiris, Stamatis v Stefan Palosi | 2-6,3-6 |
| ITF Greece F7 | 2018/11/04 08:00 | Maurus Malgiaritta v Stefan Palosi | 3-6,4-6 |
| ITF Greece F6 | 2018/11/01 08:25 | Lucas Catarina v Stefan Palosi | 6-2,6-3 |
| ITF Greece F6 | 2018/10/30 11:45 | Dan Alexandru Tomescu v Stefan Palosi | 3-6,7-6,1-6 |
| ITF Greece F6 | 2018/10/27 09:00 | Stefan Palosi v Bilis, Athanasios | 6-3,6-2 |
| ITF Tunisia F33 | 2018/09/24 09:00 | Hartmeier, Patrik v Stefan Palosi | 6-3,6-0 |
| ITF Tunisia F32 | 2018/09/15 10:30 | Kotzen, Alexander v Stefan Palosi | 6-7,6-3,6-4 |
| ITF Tunisia F31 | 2018/09/13 09:50 | Stefan Palosi v Klegou, Alexis | 2-6,3-6 |