Stadium: Campo 2 Round: 19 Ground: Clay
| Challenger Barletta | 2021/08/22 14:00 | Vladyslav Orlov v Luca Potenza | 4-6,6-4,5-7 |
| ITF M15 Monastir | 2021/08/08 07:30 | Luca Potenza v Mattia Bellucci | 3-6,3-6 |
| ITF M15 Monastir | 2021/08/07 07:30 | Luca Potenza v Hady Habib | 1-6,6-3,7-6 |
| ITF M15 Monastir | 2021/08/06 07:30 | Mohamed Aziz Dougaz v Luca Potenza | 6-2,6-7,5-7 |
| ITF M15 Monastir | 2021/08/05 07:30 | Antonio Massara v Luca Potenza | 6-4,1-6,3-6 |
| ITF M15 Monastir | 2021/08/01 08:00 | Eliakim Coulibaly v Luca Potenza | 5-7,6-2,6-4 |
| ITF M15 Monastir | 2021/07/31 07:30 | Luca Potenza v Khololwam Montsi | 7-5,6-1 |
| ITF M15 Monastir | 2021/07/30 07:30 | Luca Potenza v Sascha Gueymard Wayenburg | 4-6,6-4,7-6 |
| 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 |
| ITF M25 Ueberlingen | 2021/08/17 15:00 | Mariano Kestelboim v Ryan Harrison | 3-6,6-4,2-6 |
| Challenger Cary | 2021/07/18 15:00 | Liam Draxl v Ryan Harrison | 3-6,7-6,6-7 |
| ATP Newport | 2021/07/12 16:00 | Alex Bolt v Ryan Harrison | 6-0,6-7,7-5 |
| ATP Newport | 2021/07/11 16:45 | Ryan Harrison v Christopher Eubanks | 7-6,6-7,7-6 |
| ITF M15 Weston | 2021/07/04 15:00 | Ryan Harrison v Stefan Kozlov | 7-5,3-6,3-6 |