Moscow 2021 ATP
Final
| Winner | Loser | Score | |
|---|---|---|---|
| Aslan Karatsev | d. | Marin Cilic | 6-2 6-4 |
Semifinals
| Winner | Loser | Score | |
|---|---|---|---|
| Aslan Karatsev | d. | Karen Khachanov | 7-6(7) 6-1 |
| Marin Cilic | d. | Ricardas Berankis | 6-3 6-4 |
Quarterfinals
| Winner | Loser | Score | |
|---|---|---|---|
| Aslan Karatsev | d. | Gilles Simon | 6-4 6-3 |
| Karen Khachanov | d. | John Millman | 7-5 7-6(4) |
| Marin Cilic | d. | Pedro Martinez | 6-1 6-2 |
| Ricardas Berankis | d. | Adrian Mannarino | 6-2 7-6(1) |
Round of 16
| Winner | Loser | Score | |
|---|---|---|---|
| Aslan Karatsev | d. | Egor Gerasimov | 6-4 6-3 |
| Gilles Simon | d. | Mackenzie Mcdonald | 6-3 6-2 |
| Karen Khachanov | d. | James Duckworth | 3-6 6-3 6-1 |
| John Millman | d. | Illya Marchenko | 6-1 5-7 6-4 |
| Marin Cilic | d. | Tommy Paul | 7-5 6-3 |
| Pedro Martinez | d. | Filip Krajinovic | 6-3 6-4 |
| Ricardas Berankis | d. | Federico Coria | 6-2 6-1 |
| Adrian Mannarino | d. | Andrey Rublev | 5-7 7-6(4) 6-3 |
Round of 32
| Winner | Loser | Score | |
|---|---|---|---|
| Egor Gerasimov | d. | Miomir Kecmanovic | 6-3 1-6 6-4 |
| Mackenzie Mcdonald | d. | Yoshihito Nishioka | 6-3 6-4 |
| Gilles Simon | d. | Laslo Djere | 6-7(3) 7-5 6-3 |
| James Duckworth | d. | Borna Gojo | 3-6 7-5 6-2 |
| John Millman | d. | Benjamin Bonzi | 6-7(5) 6-4 6-3 |
| Illya Marchenko | d. | Alexander Bublik | 6-4 6-3 |
| Marin Cilic | d. | Damir Dzumhur | 6-7(4) 6-1 6-1 |
| Tommy Paul | d. | Mikael Ymer | 7-6(7) 7-5 |
| Pedro Martinez | d. | Guido Pella | 6-2 0-0 RET |
| Ricardas Berankis | d. | Evgeny Donskoy | 6-1 6-3 |
| Federico Coria | d. | Alibek Kachmazov | 6-2 5-7 6-2 |
| Adrian Mannarino | d. | Roman Safiullin | 1-6 7-6(6) 6-4 |
Qualifying round 2
| Winner | Loser | Score | |
|---|---|---|---|
| Damir Dzumhur | d. | Zdenek Kolar | 7-5 6-3 |
| Illya Marchenko | d. | Jurij Rodionov | 6-4 6-1 |
| Borna Gojo | d. | Ricardas Berankis | 4-6 7-5 6-4 |
| Egor Gerasimov | d. | Elias Ymer | 6-4 1-6 6-2 |
Qualifying round 1
| Winner | Loser | Score | |
|---|---|---|---|
| Jurij Rodionov | d. | Denis Istomin | 6-4 6-2 |
| Illya Marchenko | d. | Radu Albot | 7-6(5) 6-3 |
| Borna Gojo | d. | Marc Polmans | 7-6(5) 6-2 |
| Ricardas Berankis | d. | Dmitry Popko | 6-4 6-1 |
| Elias Ymer | d. | Pavel Kotov | 6-2 6-3 |
| Egor Gerasimov | d. | Ramkumar Ramanathan | 6-3 6-4 |
Data: Jeff Sackmann / Tennis Abstract — CC BY-NC-SA 4.0