Stadium: Court 4 Round: 62 Ground: Hardcourt outdoor
| ITF - M15 Sozopol | 2021/09/12 11:00 | Vladislav Gorbatenko v Ioannis Stamoulos | 6-2,6-2 |
| ITF - M25 Poznan | 2021/08/22 08:00 | Jesse De Jager v Ioannis Stamoulos | 6-3,6-0 |
| ITF - M15 Lodz | 2021/08/15 09:30 | Ioannis Stamoulos v Alan Bojarski | 3-6,0-6 |
| ITF - M15 Heraklion | 2020/03/02 08:30 | Ioannis Stamoulos v Pietro Marino | 1-6,2-6 |
| ITF - M15 Heraklion | 2020/02/26 13:20 | Coleman Wong v Ioannis Stamoulos | 6-3,5-7,6-0 |
| ITF - M15 Heraklion | 2020/02/16 08:30 | Edward Hubner v Ioannis Stamoulos | 6-3,6-1 |
| ITF - M15 Heraklion | 2020/02/11 09:30 | Ioannis Stamoulos v Stefan Seifert | 0-6,6-2,3-6 |
| ITF - M15 Heraklion | 2019/12/09 08:00 | Jordan Hasson v Ioannis Stamoulos | 6-2,6-0 |
| ITF - M15 Heraklion | 2021/11/01 11:00 | Drew Van Orderlain v Christian Fellin | 6-3,2-6,6-10 |
| ITF - M15 Selva Gardena | 2021/10/25 08:50 | Alessandro Pecci v Christian Fellin | 6-3,7-5 |
| ITF - M15 Selva Gardena | 2021/10/24 12:55 | Luca Teboul v Christian Fellin | 4-6,4-6 |
| ITF - M15 Bad Waltersdorf | 2021/08/31 07:00 | Matic Dimic v Christian Fellin | 6-1,6-1 |
| ITF - M15 Bad Waltersdorf | 2021/08/30 09:00 | Christian Fellin v Simone Cacciapuoti | 6-2,6-4 |
| ITF - M25 Lesa | 2021/08/22 08:40 | Alessio Tramontin v Christian Fellin | 4-6,6-0,10-8 |
| ITF - M15 Pescara | 2021/08/15 07:30 | Christian Fellin v Federico Marchetti | 0-6,2-6 |
| ITF - M25 Bolzano | 2021/08/02 14:45 | Andrea Gola v Christian Fellin | 6-1,7-5 |