Stadium: Court 1 Round: 26 Ground: Clay
| Challenger Francavilla | 2018/04/26 10:00 | Tallon Griekspoor v Renzo Olivo | 7-6,6-4 |
| Australian Open | 2021/01/11 07:30 | Julian Lenz v Renzo Olivo | 1-6,6-2,6-2 |
| Challenger Campinas | 2020/12/03 14:00 | Renzo Olivo v Facundo Bagnis | 1-6,5-7 |
| Challenger Campinas | 2020/12/01 15:00 | Renzo Olivo v Vitaliy Sachko | 6-7,6-0,6-4 |
| Challenger Lima | 2020/11/25 16:55 | Renzo Olivo v Roberto Carballes Baena | 7-5,0-6,4-6 |
| Challenger Lima | 2020/11/23 15:00 | Jorge Panta v Renzo Olivo | 4-6,1-6 |
| Challenger Guayaquil | 2020/11/19 15:00 | Renzo Olivo v Roberto Carballes Baena | 4-6,4-6 |
| Challenger Guayaquil | 2020/11/16 17:00 | Jelle Sels v Renzo Olivo | 6-4,2-6,4-6 |
| Challenger Lisbon | 2020/10/13 11:00 | Elliot Benchetrit v Renzo Olivo | 6-3,7-6 |
| Australian Open | 2021/01/11 12:00 | Harry Bourchier v Tallon Griekspoor | 6-7,3-6 |
| Challenger Lisbon | 2020/10/12 09:00 | Constant Lestienne v Tallon Griekspoor | 5-7,6-2,3-6 |
| French Open | 2020/09/21 13:30 | Daniel Altmaier v Tallon Griekspoor | 6-1,6-3 |
| Challenger Ostrava | 2020/09/05 10:40 | Oscar Otte v Tallon Griekspoor | 6-2,6-4 |
| Challenger Ostrava | 2020/09/04 09:00 | Tallon Griekspoor v Ilya Ivashka | 7-6,6-3 |
| Challenger Ostrava | 2020/09/03 09:00 | Steven Diez v Tallon Griekspoor | 6-4,2-6,4-6 |
| Challenger Ostrava | 2020/09/02 08:00 | Tallon Griekspoor v Robin Haase | 4-6,6-4,7-6 |
| Challenger Prague 2 | 2020/08/30 09:00 | Aslan Karatsev v Tallon Griekspoor | 6-4,7-6 |