| ITF M15 Monastir | 12/10 13:15 | 25 | [468] Florian Lakat v Sadio Doumbia [351] | 6-3,4-6,5-7 | |
| Challenger Shenzhen 2 | 10/28 03:45 | 24 | [342] Sadio Doumbia v Ivan Nedelko [324] | 3-6,3-6 | |
| Challenger Liuzhou | 10/21 06:00 | 24 | Makoto Ochi v Sadio Doumbia | Cancelled | |
| Challenger Ningbo | 10/15 02:00 | 24 | Goncalo Oliveira v Sadio Doumbia | Cancelled | |
| Challenger Nur-Sultan 2 | 09/30 12:25 | 24 | Khumoyun Sultanov v Sadio Doumbia | Cancelled | |
| Challenger Sibiu | 09/17 09:00 | 24 | [330] Sadio Doumbia v Zdenek Kolar [271] | 4-6,2-6 | |
| Challenger Banja Luka | 09/10 08:00 | 24 | [482] Genaro Alberto Olivieri v Sadio Doumbia [316] | 1-6,7-5,6-4 | |
| ITF M25 Trieste | 09/05 15:00 | 27 | [292] Sadio Doumbia v Juan P Varillas [399] | 0-6,2-6 | |
| ITF M25 Trieste | 09/04 12:20 | 26 | Sadio Doumbia v Giovanni Fonio | Walkover | |
| ITF M25 Trieste | 09/03 08:50 | 25 | Sadio Doumbia v Mike Urbanija | 6-3,3-6,6-3 | |
| Challenger Como | 08/29 11:30 | 26 | [308] Jelle Sels v Sadio Doumbia [292] | 6-1,7-6 | |
| Challenger Como | 08/28 08:00 | 25 | [292] Sadio Doumbia v Filippo Baldi [146] | 3-6,7-6,6-2 | |
| Challenger Como | 08/27 10:00 | 24 | [292] Sadio Doumbia v Andrea Arnaboldi [295] | 6-4,6-4 | |
| Challenger Cordenons | 08/13 08:00 | 24 | [312] Andrea Pellegrino v Sadio Doumbia [294] | 6-2,6-4 | |
| Challenger Manerbio | 08/09 15:00 | 27 | [126] Paolo Lorenzi v Sadio Doumbia [307] | 1-6,7-5,6-4 | |
| Challenger Manerbio | 08/09 09:40 | 26 | [328] Andrea Pellegrino v Sadio Doumbia [307] | 7-5,3-6,4-6 | |
| Challenger Manerbio | 08/06 09:45 | 25 | [307] Sadio Doumbia v Viktor Galovic [222] | 6-1,6-2 | |
| Challenger Manerbio | 08/05 08:00 | 24 | [307] Sadio Doumbia v Ante Pavic [132] | Retired | |
| Challenger Liberec | 07/29 13:00 | 24 | [332] Manuel Guinard v Sadio Doumbia [368] | 7-6,6-2 | |
| Challenger Tampere | 07/25 12:50 | 26 | [375] Sadio Doumbia v Federico Coria [172] | 2-6,3-6 | |
| Challenger Tampere | 07/24 07:30 | 25 | [239] Zdenek Kolar v Sadio Doumbia [375] | 1-6,6-4,4-6 | |
| Challenger Tampere | 07/23 07:00 | 24 | [416] Ben Patael v Sadio Doumbia [375] | Retired | |
| ITF M25 Kassel | 07/20 11:00 | 28 | Sadio Doumbia v Jules Okala | 2-6,1-6 | |
| ITF M25 Kassel | 07/19 12:00 | 27 | Sadio Doumbia v Valentin Guenther | 7-5,6-2 | |
| ITF M25 Kassel | 07/18 12:25 | 26 | Sadio Doumbia v Evan Furness | 7-6,7-6 | |
| ITF M25 Kassel | 07/17 16:10 | 25 | Sadio Doumbia v Manuel Pena Lopez | 3-6,6-3,6-2 | |
| ITF M25 Casinalbo | 07/12 12:30 | 27 | Sadio Doumbia v Mircea-Alexandru Jecan | Retired | |
| ITF M25 Casinalbo | 07/11 09:00 | 26 | Sadio Doumbia v Maxime Chazal | 7-5,6-3 | |
| ITF M25 Casinalbo | 07/09 09:00 | 25 | Sadio Doumbia v Mattia Frinzi | 6-4,6-1 | |
| ITF M25 Bourg-en-Bresse | 07/06 13:00 | 28 | Sadio Doumbia v Kyrian Jacquet | 2-6,1-6 |