Stadium: Court 2 Round: 25 Ground: Clay
| ITF M25 Most | 2021/05/25 10:10 | Antonin Bolardt v Jakub Beran | 6-1,6-1 |
| ITF M25 Most | 2021/05/24 09:00 | Antonin Bolardt v Mark Havlicek | 6-2,6-2 |
| ITF M25 Most | 2021/05/23 15:00 | Antonin Stepanek v Antonin Bolardt | 2-6,4-6 |
| ITF M25 Jablonec Nad Nisou | 2021/05/17 08:30 | Antonin Bolardt v Filip Duda | 0-6,3-6 |
| ITF M25 Prague | 2021/05/10 10:30 | Antonin Bolardt v Patrik Rikl | 1-6,4-6 |
| ITF M25 Prague | 2021/05/09 12:30 | Tomas Krcma v Antonin Bolardt | 2-6,2-6 |
| ITF M25 Pardubice | 2020/09/30 07:00 | Petr Michnev v Antonin Bolardt | 6-3,0-6,10-6 |
| ITF M25 Pardubice | 2020/09/27 09:00 | Antonin Bolardt v Johan Nikles | 7-5,3-6,10-6 |
| ITF M15 Tbilisi | 2021/05/21 06:00 | Alexander Shevchenko v Marek Gengel | 6-7,6-4,6-4 |
| ITF M15 Tbilisi | 2021/05/20 09:40 | Aidan Mayo v Marek Gengel | 3-6,2-6 |
| ITF M15 Tbilisi | 2021/05/18 07:00 | Marat Deviatiarov v Marek Gengel | 1-6,4-6 |
| ITF M15 Jerusalem | 2021/05/14 07:30 | Zane Khan v Marek Gengel | 7-5,7-6 |
| ITF M15 Jerusalem | 2021/05/13 10:35 | Alexandros Skorilas v Marek Gengel | 2-6,1-6 |
| ITF M15 Jerusalem | 2021/05/12 10:00 | Lorenzo Lorusso v Marek Gengel | 6-7,4-6 |
| Challenger Salinas 2 | 2021/04/27 17:20 | Hernan Casanova v Marek Gengel | 3-6,6-4,7-5 |
| Challenger Salinas 2 | 2021/04/26 21:00 | Gage Brymer v Marek Gengel | 4-6,7-5,2-6 |