Stadium: Court 4 Round: 25 Ground: Hardcourt outdoor
| ITF - M15 Monastir | 2019/12/04 13:00 | Lakat, Florian v Petr Michnev | 1-6,7-6,4-6 |
| ITF M25 Monastir | 2019/10/27 15:30 | Lakat, Florian v David Quayle | 4-6,0-6 |
| ITF M25 Falun | 2019/09/30 13:45 | Lakat, Florian v Niklas-Salminen, Patrick | 3-6,1-6 |
| Stockholm, Singles M-ITF-SWE-05A | 2019/09/26 13:45 | Podzus, Martins v Lakat, Florian | 6-3,7-6 |
| Stockholm, Singles M-ITF-SWE-05A | 2019/09/25 09:00 | Lakat, Florian v Samuelsson, Christian | 6-4,6-4 |
| Stockholm, Singles M-ITF-SWE-05A | 2019/09/24 10:25 | Lakat, Florian v Hallquist Lithen, John | 7-6,6-1 |
| Stockholm, Singles M-ITF-SWE-05A | 2019/09/23 13:55 | Lakat, Florian v Arvid Nordquist | 7-6,6-3 |
| ITF M25 Plaisir | 2019/09/18 10:15 | Samuelsson, Christian v Lakat, Florian | 7-5,6-1 |
| Shenzhen II, Chine | 2019/10/28 03:45 | Doumbia, Sadio v Nedelko, Ivan | 3-6,3-6 |
| Challenger Sibiu | 2019/09/17 09:00 | Doumbia, Sadio v Zdenek Kolar | 4-6,2-6 |
| Challenger Banja Luka | 2019/09/10 08:00 | Genaro Alberto Olivieri v Doumbia, Sadio | 1-6,7-5,6-4 |
| Trieste, Singles M-ITF-ITA-20A | 2019/09/05 15:00 | Doumbia, Sadio v Juan Pablo Varillas | 0-6,2-6 |
| Trieste, Singles M-ITF-ITA-20A | 2019/09/03 08:50 | Doumbia, Sadio v Urbanija, Mike | 6-3,3-6,6-3 |
| Challenger Como | 2019/08/29 11:30 | Jelle Sels v Doumbia, Sadio | 6-1,7-6 |
| Challenger Como | 2019/08/28 08:00 | Doumbia, Sadio v Baldi, Filippo | 3-6,7-6,6-2 |
| Challenger Como | 2019/08/27 10:00 | Doumbia, Sadio v Arnaboldi, Andrea | 6-4,6-4 |