Stadium: Hard 3 Round: 25 Ground: Hardcourt outdoor
| ITF M15 - Heraklion | 2019/11/26 08:00 | Valentin Guenther v Aleksei Khomich | 6-4,5-7,10-8 |
| ITF M15 - Heraklion | 2019/11/25 09:00 | Valentin Guenther v Arthur Bernabe | 7-6,6-0 |
| ITF M15 - Villers-lès-Nancy | 2019/11/13 09:00 | Valentin Guenther v Maxime Tchoutakian | 4-6,3-6 |
| ITF M25 - Saint Dizier | 2019/11/04 19:40 | Valentin Guenther v Maxence Beauge | 7-6,4-6,4-10 |
| ITF M15 - Doha | 2019/10/24 12:00 | Valentin Guenther v Karl Friberg | 1-6,2-6 |
| ITF M15 - Doha | 2019/10/23 12:00 | Valentin Guenther v Peter Goldsteiner | 6-2,6-3 |
| ITF M15 - Doha | 2019/10/16 15:55 | Valentin Guenther v Ricardo Rodriguez-Pace | 3-6,6-7 |
| ITF M25 - Nevers | 2019/10/03 09:00 | Valentin Guenther v Dan Added | 3-6,2-6 |
| ITF M15 - Heraklion | 2019/11/26 08:00 | Uisung Park v Remy Bertola | 6-2,3-6,10-6 |
| ITF M15 - Heraklion | 2019/11/25 09:00 | Uisung Park v Lukas H Lilleengen | 6-1,6-3 |
| ITF M15 - Heraklion | 2019/11/20 10:00 | Uisung Park v Alexandar Lazarov | 4-6,2-6 |
| ITF M15 - Heraklion | 2019/11/19 07:30 | Uisung Park v Shahar Elbaz | 6-1,6-1 |
| ITF M15 - Heraklion | 2019/11/18 08:00 | Uisung Park v Harry Meehan | 6-1,6-3 |
| ITF M15 - Heraklion | 2019/11/17 07:30 | Uisung Park v Christopher Patzanovsky | 6-3,6-3 |
| ITF M15 - Heraklion | 2019/11/12 07:30 | Uisung Park v Shahar Elbaz | 6-3,3-6,4-10 |
| ITF M15 - Heraklion | 2019/11/11 08:00 | Uisung Park v Jonathan Binding | 6-4,6-2 |