# 2020 Rio Open – Singles

Cristian Garín won the title, defeating Gianluca Mager in the final, 7–6$^{(7–3)}$, 7–5.
Laslo Đere was the defending champion, but withdrew with an abdominal injury before the tournament began.
This was the first clay court tournament where players were allowed to use the challenge system.
This tournament was notable for being the ATP debut of future world No.1 Carlos Alcaraz. He received a wildcard into the main draw and reached the second round, after a win over compatriot Albert Ramos Viñolas.

## Seeds

* Dominic Thiem (quarterfinals)
* Dušan Lajović (second round)
* Cristian Garín (champion)
* Guido Pella (first round)
* Borna Ćorić (semifinals)
* Laslo Đere (withdrew)
* Albert Ramos Viñolas (first round)
* Casper Ruud (first round)
* Fernando Verdasco (first round)

## Draw
### Key

* Q = Qualifier
* WC = Wild card
* LL = Lucky loser
* Alt = Alternate
* SE = Special exempt
* PR = Protected ranking
* ITF = ITF entry
* JE = Junior exempt
* w/o = Walkover
* r = Retired
* d = Defaulted
* SR = Special ranking

### Finals

| Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| Q | Gianluca Mager | 7$^7$ | 4 | 7$^7$ | | | | |
| LL | Attila Balázs | 6$^4$ | 6 | 6$^2$ | | | | |
| LL | Attila Balázs | 6$^4$ | 6 | 6$^2$ | Q | Gianluca Mager | 6$^3$ | 5 |
| | | | | | 3 | Cristian Garín | 7$^7$ | 7 |
| 3 | Cristian Garín | 6 | 7 | | 3 | Cristian Garín | 7$^7$ | 7 |
| 5 | Borna Ćorić | 4 | 5 | | | | | |

### Top half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | D Thiem | 6 | 4 | 6 | | | | | | | | | | | | | | | |
| WC | F Meligeni Alves | 2 | 6 | 1 | 1 | D Thiem | 6$^5$ | 6 | 6 | | | | | | | | | | |
| | J Munar | 7 | 6 | | | J Munar | 7$^7$ | 3 | 4 | | | | | | | | | | |
| | S Caruso | 5 | 4 | | | | | | | 1 | D Thiem | 6$^4$ | 5 | | | | | | |
| Q | J Domingues | 7$^{10}$ | 6 | | | | | | | Q | G Mager | 7$^7$ | 7 | | | | | | |
| LL | F Gaio | 6$^8$ | 4 | | Q | J Domingues | 3 | 6$^5$ | | | | | | | | | | | |
| Q | G Mager | 7$^7$ | 7 | | Q | G Mager | 6 | 7$^7$ | | | | | | | | | | | |
| 8 | C Ruud | 6$^4$ | 5 | | | | | | | | | | | | Q | G Mager | 7$^7$ | 4 | 7$^7$ |
| 4 | G Pella | 7 | 4 | 6$^3$ | | | | | | | | | | | LL | A Balázs | 6$^4$ | 6 | 6$^2$ |
| | T Monteiro | 5 | 6 | 7$^7$ | | T Monteiro | 6 | 1 | 4 | | | | | | | | | | |
| LL | A Balázs | 6 | 6 | | LL | A Balázs | 1 | 6 | 6 | | | | | | | | | | |
| | P Cuevas | 4 | 3 | | | | | | | LL | A Balázs | 2 | 6 | 6 | | | | | |
| Q | P Martínez | 3 | 6 | 7 | | | | | | Q | P Martínez | 6 | 4 | 2 | | | | | |
| | H Dellien | 6 | 2 | 5 | Q | P Martínez | 6 | 6 | | | | | | | | | | | |
| | P Andújar | 6 | 6 | | | P Andújar | 1 | 4 | | | | | | | | | | | |
| 9 | F Verdasco | 3 | 3 | | | | | | | | | | | | | | | | |

### Bottom half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 7 | A Ramos Viñolas | 6$^2$ | 6 | 6$^2$ | | | | | | | | | | | | | | |
| WC | C Alcaraz | 7$^7$ | 4 | 7$^7$ | WC | C Alcaraz | 4 | 6 | 4 | | | | | | | | | |
| | C Moutet | 6 | 6$^1$ | 6$^3$ | Q | F Coria | 6 | 4 | 6 | | | | | | | | | |
| Q | F Coria | 1 | 7$^7$ | 7$^7$ | | | | | | Q | F Coria | 6 | 3 | 5 | | | | |
| | R Carballés Baena | 2 | 4 | | | | | | | 3 | C Garín | 2 | 6 | 7 | | | | |
| | F Delbonis | 6 | 6 | | | F Delbonis | 4 | 3 | | | | | | | | | | |
| | A Martin | 6 | 5 | 6$^5$ | 3 | C Garín | 6 | 6 | | | | | | | | | | |
| 3 | C Garín | 4 | 7 | 7$^7$ | | | | | | | | | | | 3 | C Garín | 6 | 7 |
| 5 | B Ćorić | 7$^7$ | 7 | | | | | | | | | | | | 5 | B Ćorić | 4 | 5 |
| | JI Londero | 6$^5$ | 5 | | 5 | B Ćorić | 6 | 1 | 7$^7$ | | | | | | | | | |
| | A Davidovich Fokina | 7 | 6$^3$ | 5 | WC | T Seyboth Wild | 3 | 6 | 6$^5$ | | | | | | | | | |
| WC | T Seyboth Wild | 5 | 7$^7$ | 7 | | | | | | 5 | B Ćorić | 7$^7$ | 6 | | | | | |
| | L Mayer | 1 | 7 | 4 | | | | | | | L Sonego | 6$^5$ | 3 | | | | | |
| | L Sonego | 6 | 5 | 6 | | L Sonego | 7$^7$ | 7$^7$ | | | | | | | | | | |
| | M Cecchinato | 4 | 7$^7$ | 1 | 2 | D Lajović | 6$^5$ | 6$^5$ | | | | | | | | | | |
| 2 | D Lajović | 6 | 6$^4$ | 6 | | | | | | | | | | | | | | |

## Qualifying
### Seeds

* Andrej Martin (moved to main draw)
* Attila Balázs (qualifying competition, lucky loser)
* Federico Coria (qualified)
* Federico Gaio (qualifying competition, lucky loser)
* Gianluca Mager (qualified)
* Jozef Kovalík (qualifying competition)
* Pedro Martínez (qualified)
* Alessandro Giannessi (first round, retired)

### Qualifiers

* Pedro Martínez
* Gianluca Mager
* Federico Coria
* João Domingues

### Lucky losers

* Attila Balázs
* Federico Gaio

### Qualifying draw
#### First qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| Alt | Mario Vilella Martínez | 6$^4$ | 3 | | | | |
| | Filip Horanský | 7$^7$ | 6 | | | | |
| | Filip Horanský | 7$^7$ | 6 | | Filip Horanský | 4 | 2 |
| | | | | 7 | Pedro Martínez | 6 | 6 |
| WC | Mateus Alves | 2 | 3 | 7 | Pedro Martínez | 6 | 6 |
| 7 | Pedro Martínez | 6 | 6 | | | | |

#### Second qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 2 | Attila Balázs | 6 | 6 | | | | |
| WC | Orlando Luz | 3 | 3 | | | | |
| WC | Orlando Luz | 3 | 3 | 2 | Attila Balázs | 0 | 2 |
| | | | | 5 | Gianluca Mager | 6 | 6 |
| | Andrea Collarini | 1 | 2 | 5 | Gianluca Mager | 6 | 6 |
| 5 | Gianluca Mager | 6 | 6 | | | | |

#### Third qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 3 | Federico Coria | 7$^7$ | 6 | | | | |
| | Carlos Taberner | 6$^5$ | 1 | | | | |
| | Carlos Taberner | 6$^5$ | 1 | 3 | Federico Coria | 6 | 6 |
| | | | | 6 | Jozef Kovalík | 2 | 4 |
| WC | Pedro Boscardin Dias | 3 | 1 | 6 | Jozef Kovalík | 2 | 4 |
| 6 | Jozef Kovalík | 6 | 6 | | | | |

#### Fourth qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 4 | Federico Gaio | 6$^5$ | 6 | 6 | | | | | |
| | João Menezes | 7$^7$ | 4 | 3 | | | | | |
| | João Menezes | 7$^7$ | 4 | 3 | 4 | Federico Gaio | 6 | 6$^5$ | 5 |
| | | | | | | João Domingues | 3 | 7$^7$ | 7 |
| | João Domingues | 7 | 3 | | | João Domingues | 3 | 7$^7$ | 7 |
| 8 | Alessandro Giannessi | 5 | 1$^r$ | | | | | | |