Stadium: Hard 3 Round: 44 Ground: Hardcourt outdoor
| ITF - M15 Héraklion | 2019/11/25 09:00 | Guenther, Valentin v Bernabe, Arthur | 7-6,6-0 |
| ITF M15 Villers Les Nancy | 2019/11/13 09:00 | Guenther, Valentin v Tchoutakian, Maxime | 4-6,3-6 |
| ITF - M25 Saint-Dizier | 2019/11/04 19:40 | Guenther, Valentin v Maxence Beauge | 7-6,4-6,4-10 |
| ITF - M15 Doha | 2019/10/24 12:00 | Guenther, Valentin v Karl Friberg | 1-6,2-6 |
| ITF - M15 Doha | 2019/10/23 12:00 | Guenther, Valentin v Goldsteiner, Peter | 6-2,6-3 |
| ITF - M15 Doha | 2019/10/16 15:55 | Guenther, Valentin v Rodriguez-Pace, Ricardo | 3-6,6-7 |
| ITF M25 Nevers | 2019/10/03 09:00 | Guenther, Valentin v Dan Added | 3-6,2-6 |
| Horgen, Singles Qualifying M-ITF-SUI-03A | 2019/08/30 11:00 | Guenther, Valentin v Damien Wenger | 1-6,4-6 |
| ITF - M15 Héraklion | 2019/11/25 09:00 | Khomich, Aleksei v Heger, Tim | 4-6,6-3,10-5 |
| ITF - M15 Héraklion | 2019/11/24 08:00 | Neil Oberleitner v Khomich, Aleksei | 2-6,0-6 |
| ITF - M15 Héraklion | 2019/11/17 07:30 | Elbaz, Shahar v Khomich, Aleksei | 6-3,6-4 |
| ITF - M15 Doha | 2019/10/22 13:50 | Khomich, Aleksei v Dzhavakian, Yurii | 6-4,2-6,5-10 |
| ITF - M15 Doha | 2019/10/21 15:05 | Khomich, Aleksei v Khingi, Mohammad | 6-1,6-1 |
| ITF - M15 Doha | 2019/10/16 11:55 | Khomich, Aleksei v Rishab Agarwal | 6-4,3-6,4-6 |
| ITF - M15 Doha | 2019/10/15 14:00 | Khomich, Aleksei v Kumar T, Vinay | 6-0,6-0 |
| ITF M25 Falun | 2019/09/30 08:00 | Khomich, Aleksei v Podzus, Janis | 2-6,5-7 |