Stadium: Court 6 Round: 25 Ground: Clay
| ITF - M15 Troisdorf | 2021/05/13 09:00 | Kai Wehnelt v Lucas Gerch | 4-6,6-4,5-7 |
| ITF - M15 Troisdorf | 2021/05/11 12:35 | Tomas Lipovsek Puches v Kai Wehnelt | 1-6,7-6,3-6 |
| ITF - M15 Cairo | 2021/05/06 07:50 | Jose Fco. Vidal Azorin v Kai Wehnelt | 6-4,6-3 |
| ITF - M15 Cairo | 2021/05/05 09:45 | Hanwen Li v Kai Wehnelt | 3-6,4-6 |
| ITF - M15 Cairo | 2021/04/28 08:00 | Kai Wehnelt v Juan Ignacio Galarza | 6-7,6-4,6-7 |
| ITF - M15 Cairo | 2021/04/21 14:45 | Juan Ignacio Galarza v Kai Wehnelt | 6-3,6-3 |
| ITF - M25 Meerbusch | 2021/04/11 13:30 | Kai Wehnelt v Gian Luca Tanner | 6-3,4-6,2-10 |
| ITF - M25 Biel | 2021/03/29 07:55 | Kilian Feldbausch v Kai Wehnelt | 3-6,6-1,11-9 |
| Challenger - Biella | 2021/05/16 12:50 | Cristian Rodriguez v Tim Van Rijthoven | 6-7,6-7 |
| ITF - M15 Antalya | 2021/04/28 07:00 | Cristian Rodriguez v Oleksii Krutykh | 4-6,1-6 |
| ITF - M25 Reus | 2021/04/14 10:00 | Emilio Nava v Cristian Rodriguez | 6-4,4-6,6-2 |
| ITF - M25 Naples | 2021/02/27 16:20 | Christian Harrison v Cristian Rodriguez | 6-3,4-6,6-2 |
| ITF - M25 Naples | 2021/02/26 16:00 | Cristian Rodriguez v Alejandro Gonzalez | 6-3,5-7,7-6 |
| ITF - M25 Naples | 2021/02/25 14:50 | Alexander Ritschard v Cristian Rodriguez | 5-7,6-7 |
| ITF - M25 Naples | 2021/02/24 18:00 | Dennis Novikov v Cristian Rodriguez | 1-6,2-6 |
| ITF - M25 Naples | 2021/02/17 19:10 | Cristian Rodriguez v Bjorn Fratangelo | 2-6,6-3,1-6 |