Stadium: C Round: 62 Ground: Clay
| ITF Italy F19 | 2018/07/16 19:00 | Tomas Martin Etcheverry v Ioannis Stergiou | 6-2,7-6 |
| ITF Bosnia and Herzegovina F2 | 2018/05/25 08:00 | Nerman Fatic v Ioannis Stergiou | 6-4,6-0 |
| ITF Bosnia and Herzegovina F2 | 2018/05/24 11:35 | Ioannis Stergiou v Danylo Kalenichenko | 6-1,7-6 |
| ITF Bosnia and Herzegovina F2 | 2018/05/23 12:30 | Darko Jandric v Ioannis Stergiou | 0-6,3-6 |
| ITF Bosnia and Herzegovina F1 | 2018/05/15 08:00 | Ioannis Stergiou v Petr Hajek | 6-1,3-6,6-7 |
| Davis Cup | 2018/04/06 08:00 | Rrezart Cungu v Ioannis Stergiou | 7-6,6-2 |
| Davis Cup | 2018/04/05 09:15 | Ioannis Stergiou v Sedrak Khachatryan | 6-1,6-3 |
| Davis Cup | 2018/04/04 07:00 | Roberts Grinvalds v Ioannis Stergiou | 0-6,4-6 |
| ITF Italy F19 | 2018/07/15 08:30 | Elio Jose Ribeiro Lago v Mattia Frinzi | 1-6,0-6 |
| ITF Italy F19 | 2018/07/14 08:30 | Gianmarco Crocetti v Elio Jose Ribeiro Lago | 1-6,4-6 |
| ITF Austria F2 | 2018/07/08 09:15 | Georg Winkler v Elio Jose Ribeiro Lago | 6-3,6-0 |
| ITF Austria F2 | 2018/07/07 16:30 | Cristian Stefan Moldovan v Elio Jose Ribeiro Lago | 5-7,6-2,2-6 |
| ITF Austria F2 | 2018/07/07 07:15 | Elio Jose Ribeiro Lago v Martins Rocens | 6-4,3-6,6-4 |
| ITF Portugal F11 Qual | 2018/07/03 08:30 | Elio Jose Ribeiro Lago v Guilherme W Osorio | 4-6,2-6 |
| ITF Portugal F11 Qual | 2018/07/01 16:00 | Pedro Gabriel Rodrigues v Elio Jose Ribeiro Lago | 3-6,5-7 |
| ITF Portugal F10 | 2018/06/24 09:30 | Pedro Araujo v Elio Jose Ribeiro Lago | 6-0,5-7,6-1 |