Stadium: Court 3 Round: 26 Ground: Hardcourt outdoor
| ITF - M15 Monastir | 2021/11/03 12:30 | Martin Katz v Edouard Villoslada | 4-6,6-4,6-4 |
| ITF - M15 Monastir | 2021/11/01 14:00 | Martin Katz v Josh Reid | 6-1,6-1 |
| ITF - M15 Monastir | 2021/11/01 09:00 | Martin Katz v Amaan Siddiqui | 6-3,6-1 |
| ITF - M15 Monastir | 2021/10/31 12:30 | Martin Katz v Egor Tsarapkin | 6-3,6-3 |
| ITF - M15 Monastir | 2021/10/14 08:30 | Robin Bertrand v Martin Katz | 6-4,6-3 |
| ITF - M15 Monastir | 2021/10/13 08:30 | Martin Katz v Aziz Ouakaa | 4-6,7-6,6-2 |
| ITF - M15 Monastir | 2021/10/06 08:30 | Martin Katz v Quentin Folliot | 7-5,4-6,4-6 |
| ITF - M15 Monastir | 2021/10/04 13:00 | Martin Katz v Josef Southcombe | 6-3,7-5 |
| ITF - M15 Monastir | 2021/11/03 12:30 | Chessari, Riccardo v Giacalone, Omar | 2-6,6-4,2-6 |
| ITF M25 Budapest | 2021/09/29 07:30 | Filip Duda v Giacalone, Omar | 6-1,6-3 |
| ITF M25 Pardubice | 2021/09/23 07:30 | Giacalone, Omar v Luca Nardi | 2-6,6-7 |
| ITF M25 Madrid | 2021/09/17 08:00 | Carlos Lopez Montagud v Giacalone, Omar | 7-6,0-6,7-6 |
| ITF M25 Madrid | 2021/09/16 07:55 | Giacalone, Omar v Carlos Sanchez Jover | 6-3,6-4 |
| ITF M25 Madrid | 2021/09/15 11:45 | Rodenas, Pedro v Giacalone, Omar | 2-6,5-7 |
| ITF M15 Bad Waltersdorf | 2021/09/04 10:20 | Spec, Matic v Giacalone, Omar | 2-6,6-3,6-3 |
| ITF M15 Bad Waltersdorf | 2021/09/03 10:00 | Giacalone, Omar v Lukas Neumayer | 6-3,7-6 |