Stadium: Court 3 Round: 44 Ground: Clay
| ITF M25 Poznan | 2021/08/25 08:00 | Calvo Barcelo, Fermin v Felix Gill | 3-6,6-7 |
| ITF M25 Poznan | 2021/08/24 16:10 | Harry Wendelken v Calvo Barcelo, Fermin | 6-2,6-3 |
| ITF M25 Poznan | 2021/08/24 08:00 | Juliusz Bienkiewicz v Calvo Barcelo, Fermin | 4-6,2-6 |
| ITF M25 Poznan | 2021/08/22 08:00 | Calvo Barcelo, Fermin v Bronka, Adam | 6-0,6-2 |
| ITF M15 Lodz | 2021/08/16 09:30 | Leonardo Aboian v Calvo Barcelo, Fermin | 3-6,7-6,10-7 |
| ITF M15 Lodz | 2021/08/15 09:30 | Onuma, Yujiro v Calvo Barcelo, Fermin | 1-6,1-6 |
| ITF - M15 Monastir | 2021/07/18 09:00 | Calvo Barcelo, Fermin v Sysoev, Nikolay | 3-6,6-4,6-10 |
| ITF - M15 Monastir | 2021/07/12 08:00 | van Emburgh, Jake v Calvo Barcelo, Fermin | 6-3,3-6,10-6 |
| Prostejov, Singles M-ITF-CZE-04A | 2021/08/15 08:00 | Krcma, Tomas v Tom Gentzsch | 0-6,2-6 |
| ITF M15 Poprad | 2021/07/04 08:00 | Krcma, Tomas v Galik, Matej | 1-6,0-6 |
| ITF M25 Most | 2021/05/23 14:00 | Thurner, Dean v Krcma, Tomas | 3-6,7-5,10-6 |
| ITF M25 Jablonec Nad Nisou | 2021/05/16 10:00 | Krcma, Tomas v Stepan Pecak | 3-6,1-6 |
| ITF M25 Prague | 2021/05/09 12:30 | Krcma, Tomas v Bolardt, Antonin | 2-6,2-6 |
| ITF - M15 Héraklion | 2020/11/16 07:30 | Domagoj Biljesko v Krcma, Tomas | 6-0,6-1 |
| ITF M25 Pardubice | 2020/09/27 10:30 | Daniel Paty v Krcma, Tomas | 6-2,6-1 |
| ITF M25 Jablonec Nad Nisou | 2020/09/20 08:15 | Krcma, Tomas v Recek, Dominik | 0-6,1-6 |