Stadium: Court 4 Round: 27 Ground: Clay
| ITF M25 Kassel | 2019/07/18 12:25 | Doumbia, Sadio v Evan Furness | 7-6,7-6 |
| ITF M25 Kassel | 2019/07/17 16:10 | Doumbia, Sadio v Pena Lopez, Manuel | 3-6,6-3,6-2 |
| ITF M25 Casinalbo | 2019/07/11 09:00 | Doumbia, Sadio v Maxime Chazal | 7-5,6-3 |
| ITF M25 Casinalbo | 2019/07/09 09:00 | Doumbia, Sadio v Frinzi, Mattia | 6-4,6-1 |
| ITF M25 Bourg-en-Bresse | 2019/07/06 13:00 | Doumbia, Sadio v Kyrian Jacquet | 2-6,1-6 |
| ITF M25 Bourg-en-Bresse | 2019/07/05 10:30 | Doumbia, Sadio v Eysseric, Jonathan | 6-1,6-0 |
| ITF M25 Bourg-en-Bresse | 2019/07/04 11:00 | Doumbia, Sadio v Nikolay Vylegzhanin | 2-6,7-6,6-0 |
| ITF M25 Bourg-en-Bresse | 2019/07/03 16:10 | Doumbia, Sadio v Antoine Walch | 6-2,6-1 |
| ITF M25 Kassel | 2019/07/18 09:00 | Marek Gengel v Guenther, Valentin | 7-6,2-6,4-6 |
| ITF M25 Kassel | 2019/07/17 09:30 | Guenther, Valentin v Reboul, Fabien | 6-4,2-6,6-1 |
| ITF M25 Kassel | 2019/07/16 09:25 | Wunder, Markus v Guenther, Valentin | 1-6,5-7 |
| ITF M15 Marburg | 2019/07/11 17:40 | Stanek, Robin v Guenther, Valentin | 6-1,7-6 |
| ITF M15 Marburg | 2019/07/10 13:40 | Guenther, Valentin v Frawley, James | 6-4,7-6 |
| ITF M15 Marburg | 2019/07/08 09:00 | Guenther, Valentin v Kahlke, Jannis | 6-4,6-2 |
| ITF M15 Marburg | 2019/07/08 07:00 | Guenther, Valentin v Bosnjak, Mislav | 3-6,6-1,10-7 |
| Saarlouis, Singles Qualifying M-ITF-GER-07A | 2019/07/03 16:40 | Guenther, Valentin v Baltensperger, Raphael | 2-6,6-7 |