Stadium: Loule 4 Round: 62 Ground: Hardcourt outdoor
| ITF M25 Trier | 2021/08/23 10:30 | Leopold Zima v Lennart Melzer | 6-1,6-1 |
| ITF M25 Koksijde | 2021/08/15 11:40 | Lennart Melzer v Tom Clavel | 3-6,6-4,8-10 |
| ITF M15 Esch/Alzette | 2021/07/18 09:45 | Lennart Melzer v Andreja Petrovic | 3-6,0-6 |
| ITF M25 Bourg-en-Bresse | 2021/06/27 12:50 | Damien Wenger v Lennart Melzer | 6-1,6-0 |
| ITF M25 La Nucia | 2021/03/14 08:00 | Jorge Martinez Martinez v Lennart Melzer | 6-0,6-1 |
| ITF M15 La Nucia | 2021/03/08 11:00 | Lennart Melzer v Francisco Andreu Garcia | 2-6,1-6 |
| ITF M15 Antalya | 2021/02/28 11:00 | Lennart Melzer v Vito Dell'Elba | 3-6,2-6 |
| ITF M15 Monastir | 2020/12/06 08:00 | Omni Kumar v Lennart Melzer | 6-0,6-0 |
| ITF M25 Trier | 2021/08/26 09:25 | Sandro Kopp v Raphael Calzi | 6-2,6-1 |
| ITF M25 Trier | 2021/08/25 09:00 | Max Wiskandt v Raphael Calzi | 7-5,4-6,2-6 |
| ITF M25 Koksijde | 2021/08/16 09:40 | Raphael Calzi v Olivier Rojas | 3-6,7-5,4-10 |
| ITF M25 Koksijde | 2021/08/15 08:00 | Charles Minc v Raphael Calzi | 6-3,2-6,0-10 |
| ITF M15 Frederiksberg | 2021/08/01 08:00 | Gianni Ross v Raphael Calzi | 7-5,6-4 |
| ITF M15 Esch/Alzette | 2021/07/20 12:55 | Guillaume Dermiens v Raphael Calzi | 1-6,6-4,6-4 |
| Davis Cup | 2021/06/19 09:35 | Egill Sigurdsson v Raphael Calzi | 4-6,0-6 |
| Davis Cup | 2021/06/17 09:05 | Raphael Calzi v Liam Delicata | 6-3,6-4 |