Stadium: Center Court Round: 25 Ground: Hardcourt outdoor
| ITF M15 - Heraklion | 2019/12/09 08:00 | Jordan Hasson v Ioannis Stamoulos | 6-2,6-0 |
| ITF M15 - Heraklion | 2019/12/08 10:00 | Ioannis Stamoulos v Omer Yeshaya | 6-1,4-6,11-9 |
| ITF M15 - Heraklion | 2019/12/03 09:30 | Alexander Donski v Ioannis Stamoulos | 6-3,6-3 |
| ITF M15 - Heraklion | 2019/11/24 10:30 | Billy Harris v Ioannis Stamoulos | 6-0,6-4 |
| ITF M15 - Heraklion | 2019/11/17 07:30 | Ioannis Stamoulos v Eleftherios Theodorou | 6-4,0-6,4-10 |
| ITF M15 - Heraklion | 2019/11/12 08:30 | Ioannis Stamoulos v Mick Veldheer | 0-6,0-6 |
| ITF M15 - Heraklion | 2019/11/03 08:00 | Ioannis Stamoulos v Gilad Tamar | 3-6,6-4,6-10 |
| ITF M25 - Jounieh | 2019/10/01 10:00 | Paul Valsecchi v Ioannis Stamoulos | 7-5,6-3 |
| ITF M15 - Veigy-Foncenex | 2020/01/30 11:45 | Quentin Robert v Stefan Seifert | 7-6,4-6,6-3 |
| ITF M15 - Veigy-Foncenex | 2020/01/29 14:40 | Stefan Seifert v Jurgen Briand | 7-6,6-1 |
| ITF M15 - Veigy-Foncenex | 2020/01/27 09:00 | Stefan Seifert v Glenn Smits | 6-4,6-1 |
| ITF M25 - Nussloch | 2020/01/24 14:30 | Stefan Seifert v Jonas Forejtek | 6-1,6-7,3-6 |
| ITF M25 - Nussloch | 2020/01/23 11:30 | Alexander Erler v Stefan Seifert | 4-6,3-6 |
| ITF M25 - Nussloch | 2020/01/22 11:00 | Evan Hoyt v Stefan Seifert | 5-7,3-6 |
| ITF M25 - Nussloch | 2020/01/20 17:55 | Stefan Seifert v Lasse Muscheites | 6-4,6-3 |
| ITF M25 - Nussloch | 2020/01/20 10:05 | Stefan Seifert v Niklas Albuszies | 6-0,6-2 |