Stadium: Indoor 1 Round: 24 Ground: Hardcourt indoor
| Challenger Budapest | 2019/02/06 16:50 | Zsombor Piros v Zdenek Kolar | 7-6,1-6,2-6 |
| Challenger Quimper | 2019/01/28 10:20 | Pavel Kotov v Zdenek Kolar | 6-7,7-5,6-3 |
| Challenger Rennes | 2019/01/23 13:25 | Zdenek Kolar v Antoine Hoang | 3-6,4-6 |
| Challenger Rennes | 2019/01/22 09:00 | Javier Barranco Cosano v Zdenek Kolar | 3-6,1-6 |
| Challenger Koblenz | 2019/01/15 18:50 | Zdenek Kolar v Roberto Ortega-Olmedo | 2-6,4-6 |
| Australian Open | 2019/01/08 01:50 | Lloyd Harris v Zdenek Kolar | 6-2,6-1 |
| Challenger Playford | 2019/01/02 02:40 | Lorenzo Sonego v Zdenek Kolar | 6-3,6-4 |
| Challenger Playford | 2018/12/31 06:55 | Zdenek Kolar v Sergio Gutierrez-Ferrol | 6-2,6-3 |
| Challenger Columbus | 2019/01/09 20:35 | Johan Sebastien Tatlot v Enzo Couacaud | 4-6,1-6 |
| Challenger Orlando | 2019/01/03 16:20 | Darian King v Johan Sebastien Tatlot | 6-3,6-3 |
| Challenger Orlando | 2019/01/01 21:45 | Alexander Sarkissian v Johan Sebastien Tatlot | 5-7,0-6 |
| Challenger Shenzhen 2 | 2018/10/31 05:30 | Blaz Kavcic v Johan Sebastien Tatlot | 6-1,6-2 |
| Challenger Liuzhou | 2018/10/23 06:10 | Johan Sebastien Tatlot v Prajnesh Gunneswaran | 4-6,5-7 |
| Challenger Barcelona | 2018/10/11 11:40 | Roberto Carballes Baena v Johan Sebastien Tatlot | 6-2,6-4 |
| Challenger Barcelona | 2018/10/10 13:45 | Johan Sebastien Tatlot v Bekkhan Atlangeriev | 6-1,6-3 |
| Challenger Florence | 2018/10/03 13:40 | Lorenzo Sonego v Johan Sebastien Tatlot | 6-2,6-4 |