
St. Petersburg Open, 2021, ATP 250
| Rublev, Andrey[1] | [RUS] | |
| Rublev, Andrey[1] | ||
| Ivashka, Ilya | [BLR] | 64 64 |
| Van De Zandschulp, Botic (Q) | [NED] | |
| Van De Zandschulp, Botic (Q) | ||
| Korda, Sebastian[8] | [USA] | 62 75 |
| Bautista Agut, Roberto[3] | [ESP] | |
| Bautista Agut, Roberto[3] | ||
| Mcdonald, Mackenzie | [USA] | 63 62 |
| Cilic, Marin | [CRO] | |
| Cilic, Marin | ||
| Khachanov, Karen[6] | [RUS] | 64 67(1) 64 |
| Fritz, Taylor[5] | [USA] | |
| Fritz, Taylor[5] | ||
| Paul, Tommy | [USA] | 76(3) 64 |
| Millman, John | [AUS] | |
| Millman, John | ||
| Karatsev, Aslan[4] | [RUS] | 63 62 |
| Bublik, Alexander[7] | [KAZ] | |
| Struff, Jan-Lennard | ||
| Struff, Jan-Lennard | [GER] | 64 63 |
| Andujar, Pablo (PR) | [ESP] | |
| Shapovalov, Denis[2] | ||
| Shapovalov, Denis[2] | [CAN] | 26 63 60 |
| Rublev, Andrey[1] | [RUS] | |
| Van De Zandschulp, Botic (Q) | ||
| Van De Zandschulp, Botic (Q) | [NED] | 63 64 |
| Bautista Agut, Roberto[3] | [ESP] | |
| Cilic, Marin | ||
| Cilic, Marin | [CRO] | 64 36 63 |
| Fritz, Taylor[5] | [USA] | |
| Fritz, Taylor[5] | ||
| Millman, John | [AUS] | 64 62 |
| Struff, Jan-Lennard | [GER] | |
| Struff, Jan-Lennard | ||
| Shapovalov, Denis[2] | [CAN] | 64 63 |
| Van De Zandschulp, Botic (Q) | [NED] | |
| Cilic, Marin | ||
| Cilic, Marin | [CRO] | 63 63 |
| Fritz, Taylor[5] | [USA] | |
| Fritz, Taylor[5] | ||
| Struff, Jan-Lennard | [GER] | 57 61 63 |
| Cilic, Marin | [CRO] | |
| Cilic, Marin | ||
| Fritz, Taylor[5] | [USA] | 76(3) 46 64 |








