[52] Federico Delbonis 7-6,3-6,6-4 Thiago Monteiro [79] 2021-05-26 10:00
Stadium: CENTER COURT Round: 26 Ground: Hardcourt indoor
Head to Head
| ATP Barcelona | 2019/04/20 11:00 | Federico Delbonis v Thiago Monteiro | 7-6,6-3 |
| Challenger Campinas | 2018/10/06 16:00 | Thiago Monteiro v Federico Delbonis | 0-6,7-6,2-6 |
| Challenger Biella | 2018/09/22 11:15 | Thiago Monteiro v Federico Delbonis | 2-6,3-6 |
Home History
| ATP Belgrade | 2021/05/24 13:10 | Federico Delbonis v Lukas Klein | 3-6,6-3,6-4 |
| ATP Rome | 2021/05/14 08:00 | Federico Delbonis v Reilly Opelka | 5-7,6-7 |
| ATP Rome | 2021/05/13 12:55 | Felix Auger Aliassime v Federico Delbonis | 6-7,1-6 |
| ATP Rome | 2021/05/12 12:10 | Federico Delbonis v David Goffin | 6-2,6-1 |
| ATP Rome | 2021/05/10 11:10 | Karen Khachanov v Federico Delbonis | 6-3,4-6,0-6 |
| ATP Rome | 2021/05/08 13:35 | Marcos Giron v Federico Delbonis | 3-6,3-6 |
| ATP Madrid | 2021/05/06 17:35 | Matteo Berrettini v Federico Delbonis | 7-6,6-4 |
| ATP Madrid | 2021/05/05 12:15 | Albert Ramos-Vinolas v Federico Delbonis | 6-7,3-6 |
Away History
| ATP Belgrade | 2021/05/24 17:35 | Radu Albot v Thiago Monteiro | 2-6,2-6 |
| ATP Geneva | 2021/05/18 12:25 | Thiago Monteiro v Laslo Djere | 7-6,3-6,5-7 |
| ATP Rome | 2021/05/09 09:00 | Tommy Paul v Thiago Monteiro | 7-5,4-6,7-6 |
| ATP Rome | 2021/05/08 08:00 | Mikhail Kukushkin v Thiago Monteiro | 6-7,6-7 |
| ATP Madrid | 2021/05/01 09:00 | Marcos Giron v Thiago Monteiro | 6-4,6-7,7-6 |
| ATP Munich | 2021/04/27 11:05 | Nikoloz Basilashvili v Thiago Monteiro | 6-2,6-3 |
| ATP Barcelona | 2021/04/19 16:05 | Thiago Monteiro v Jaume Munar | 3-6,5-7 |
| ATP Monte Carlo | 2021/04/10 09:30 | Thiago Monteiro v Joao Sousa | 5-7,2-6 |