Stadium: Court 2 Round: 29 Ground: Clay
| ITF M15 Naples | 2021/10/09 13:55 | Liam Draxl v Antoine Cornut-Chauvinc | 2-6,1-6 |
| ITF M15 Naples | 2021/10/08 14:30 | Antoine Cornut-Chauvinc v Juan Ignacio Galarza | 6-4,6-4 |
| ITF M15 Naples | 2021/10/07 15:00 | Antoine Cornut-Chauvinc v Oscar Mesquida Berg | 6-0,6-2 |
| ITF M15 Naples | 2021/10/06 13:30 | Antoine Cornut-Chauvinc v Dan Martin | 6-0,7-6 |
| Challenger Zadar | 2021/03/21 13:30 | Matej Sabanov v Antoine Cornut-Chauvinc | 6-1,6-4 |
| ITF M15 Rovinj | 2021/03/18 09:00 | Pavel Nejedly v Antoine Cornut-Chauvinc | 7-6,6-3 |
| ITF M15 Rovinj | 2021/03/16 12:20 | Nikita Mashtakov v Antoine Cornut-Chauvinc | 4-6,6-3,1-6 |
| ITF M15 Porec | 2021/03/11 10:30 | Antoine Cornut-Chauvinc v Sebastian Prechtel | 6-4,4-6,6-7 |
| ITF M15 Naples | 2021/10/09 14:00 | Damien Wenger v Ryan Harrison | 3-6,5-7 |
| ITF M15 Naples | 2021/10/08 14:30 | Peter Bertran v Ryan Harrison | 3-6,1-6 |
| ITF M15 Naples | 2021/10/07 15:35 | Juncheng Shang v Ryan Harrison | 3-6,2-6 |
| ITF M15 Naples | 2021/10/06 19:25 | Louroi Martinez v Ryan Harrison | 6-7,3-6 |
| Challenger Barletta | 2021/08/23 11:00 | Luca Potenza v Ryan Harrison | 3-6,6-3,2-6 |
| Challenger Barletta | 2021/08/22 12:50 | Ryan Harrison v Alexis Galarneau | 6-4,6-3 |
| ITF M25 Ueberlingen | 2021/08/20 11:30 | Ryan Harrison v Eduard Esteve Lobato | 1-6,4-6 |
| ITF M25 Ueberlingen | 2021/08/19 15:05 | Jose Fco. Vidal Azorin v Ryan Harrison | 2-6,3-6 |