Stadium: Court 2 Round: 26 Ground: Clay
| ITF M15 Naples | 2021/10/06 17:25 | Kohen, Alan v de Rossi, Marco | 2-6,4-6 |
| ITF M15 Pescara | 2021/08/16 07:00 | Postay, Alan v de Rossi, Marco | 3-6,6-7 |
| ITF M15 Pescara | 2021/08/15 07:00 | Centi Pizzutilli, Gianluca v de Rossi, Marco | 1-6,1-6 |
| San Marino, San Marino | 2021/08/10 18:15 | de Rossi, Marco v Simon, Gilles | 3-6,3-6 |
| ITF M15 Telavi | 2021/08/03 09:05 | de Rossi, Marco v Marco Miceli | 4-6,5-7 |
| ITF M15 Telavi | 2021/08/02 12:00 | Boris Butulija v de Rossi, Marco | 4-6,5-7 |
| ITF M25 Telavi | 2021/07/31 05:55 | de Rossi, Marco v Aleksandre Metreveli | 3-6,3-6 |
| ITF M25 Telavi | 2021/07/30 06:00 | de Rossi, Marco v Kalovelonis, Markos | 6-3,6-3 |
| ITF M15 Naples | 2021/10/06 17:25 | van Emburgh, Jake v Damien Wenger | 2-6,2-6 |
| ITF M15 Oldenzaal | 2021/08/22 09:30 | Johnson, Luke v Damien Wenger | 2-6,3-6 |
| ITF M15 Oldenzaal | 2021/08/21 10:10 | Guy Den Heijer v Damien Wenger | 4-6,2-6 |
| ITF M15 Oldenzaal | 2021/08/20 13:15 | Mark Whitehouse v Damien Wenger | 6-7,2-6 |
| ITF M15 Oldenzaal | 2021/08/19 09:00 | Christoph Negritu v Damien Wenger | 6-3,1-6,2-6 |
| ITF M15 Oldenzaal | 2021/08/18 09:55 | Ignacio Monzon v Damien Wenger | 2-6,0-6 |
| Gstaad, Switzerland | 2021/07/17 08:30 | Steven Diez v Damien Wenger | 6-2,6-4 |
| ITF M15 Poprad | 2021/07/11 07:55 | Damien Wenger v Jirousek, Tomas | 6-2,7-5 |