[92] Thiago Monteiro 4-6,3-6 Tennys Sandgren [102] 2021-10-07 19:55
Stadium: Stadium 5 Round: 23 Ground: Hardcourt outdoor
Home History
| Challenger Lisbon | 2021/09/29 16:50 | Thiago Monteiro v Andrea Pellegrino | 3-6,6-7 |
| Challenger Lisbon | 2021/09/28 09:00 | Thiago Monteiro v Alexandre Muller | 6-4,6-4 |
| Challenger Braga | 2021/09/26 09:55 | Thiago Monteiro v Nikola Milojevic | 7-5,7-5 |
| Challenger Braga | 2021/09/25 11:35 | Thiago Monteiro v Hugo Gaston | 6-4,6-1 |
| Challenger Braga | 2021/09/24 11:55 | Thiago Monteiro v Andrea Arnaboldi | 4-6,6-4,6-2 |
| Challenger Braga | 2021/09/22 12:00 | Thiago Monteiro v Tiago Cacao | 6-1,6-1 |
| Challenger Braga | 2021/09/21 09:00 | Thiago Monteiro v Peter Heller | 6-3,6-3 |
| Challenger Szczecin | 2021/09/16 14:00 | Marco Trungelliti v Thiago Monteiro | 6-4,6-3 |
Away History
| Challenger Columbus | 2021/09/24 17:40 | Tennys Sandgren v Jeffrey John Wolf | 3-6,6-3,6-7 |
| Challenger Columbus | 2021/09/23 17:20 | Tennys Sandgren v Gijs Brouwer | 6-4,6-4 |
| Challenger Columbus | 2021/09/21 21:20 | Tennys Sandgren v Alexis Galarneau | 6-3,6-2 |
| US Open | 2021/08/31 21:10 | Tennys Sandgren v Ilya Ivashka | 6-7,3-6,4-6 |
| ATP Winston-Salem | 2021/08/22 19:00 | Tennys Sandgren v Marco Cecchinato | 4-6,4-6 |
| ATP Cincinnati | 2021/08/15 17:05 | Tommy Paul v Tennys Sandgren | 6-7,7-6,6-3 |
| ATP Cincinnati | 2021/08/14 14:00 | Tennys Sandgren v Jeremy Chardy | 7-6,6-1 |
| ATP Washington | 2021/08/03 18:00 | Tennys Sandgren v James Duckworth | 6-3,2-6,6-2 |