Oeiras 4 CH 2021 ATP
Final
| Pemenang | Kalah | Skor | |
|---|---|---|---|
| Pedro Cachin | m. | Nuno Borges | 7-6(4) 7-6(3) |
Semifinal
| Pemenang | Kalah | Skor | |
|---|---|---|---|
| Nuno Borges | m. | Gastao Elias | 4-6 6-2 6-3 |
| Pedro Cachin | m. | Goncalo Oliveira | 7-6(4) 4-0 RET |
Perempat final
| Pemenang | Kalah | Skor | |
|---|---|---|---|
| Nuno Borges | m. | Manuel Guinard | 6-3 3-6 6-3 |
| Gastao Elias | m. | Dimitar Kuzmanov | W/O |
| Pedro Cachin | m. | Gian Marco Moroni | 6-3 2-6 6-4 |
| Goncalo Oliveira | m. | Tiago Cacao | 7-5 6-2 |
Babak 16 besar
| Pemenang | Kalah | Skor | |
|---|---|---|---|
| Nuno Borges | m. | Raul Brancaccio | 6-4 4-6 6-3 |
| Manuel Guinard | m. | Hugo Grenier | 6-4 6-1 |
| Dimitar Kuzmanov | m. | Ernesto Escobedo | 6-2 6-2 |
| Gastao Elias | m. | Carlos Gimeno Valero | 6-1 6-3 |
| Gian Marco Moroni | m. | Pavel Kotov | 6-2 6-2 |
| Pedro Cachin | m. | Adrian Andreev | 6-2 6-4 |
| Tiago Cacao | m. | Mischa Zverev | 6-3 1-6 7-6(6) |
| Goncalo Oliveira | m. | Oscar Otte | 6-4 4-6 6-3 |
Babak 32 besar
| Pemenang | Kalah | Skor | |
|---|---|---|---|
| Nuno Borges | m. | Enzo Couacaud | 6-3 6-4 |
| Raul Brancaccio | m. | Jonas Forejtek | 4-3 RET |
| Hugo Grenier | m. | Duck Hee Lee | 6-0 6-3 |
| Manuel Guinard | m. | Nicola Kuhn | 6-1 6-4 |
| Ernesto Escobedo | m. | Evan Furness | 6-3 6-2 |
| Dimitar Kuzmanov | m. | Lucas Miedler | 6-1 6-0 |
| Carlos Gimeno Valero | m. | Roberto Ortega Olmedo | 6-1 6-1 |
| Gastao Elias | m. | Marco Trungelliti | 6-1 6-4 |
| Gian Marco Moroni | m. | Alex Molcan | 6-2 6-4 |
| Pavel Kotov | m. | Harry Bourchier | 6-0 3-0 RET |
| Adrian Andreev | m. | Chun Hsin Tseng | 1-6 7-6(5) 6-3 |
| Pedro Cachin | m. | Elliot Benchetrit | 6-2 6-1 |
| Tiago Cacao | m. | Tristan Lamasine | 6-2 6-4 |
| Mischa Zverev | m. | Mats Moraing | 4-3 RET |
| Goncalo Oliveira | m. | Riccardo Bonadio | 7-6(4) 7-5 |
| Oscar Otte | m. | Pedro Araujo | 6-2 6-4 |
Kualifikasi babak 2
| Pemenang | Kalah | Skor | |
|---|---|---|---|
| Evan Furness | m. | Luis Faria | 6-3 7-6(4) |
| Adrian Andreev | m. | Filip Cristian Jianu | 6-7(4) 6-2 3-0 RET |
| Raul Brancaccio | m. | Alexey Vatutin | 6-3 3-6 5-1 RET |
Kualifikasi babak 1
| Pemenang | Kalah | Skor | |
|---|---|---|---|
| Pedro Cachin | m. | Christopher Heyman | 6-1 6-2 |
| Luis Faria | m. | Vladyslav Orlov | 6-3 7-6(5) |
| Evan Furness | m. | Denis Yevseyev | 7-6(2) 5-7 6-3 |
| Adrian Andreev | m. | Eduard Esteve Lobato | 6-3 6-4 |
| Filip Cristian Jianu | m. | Kaichi Uchida | 6-2 7-5 |
| Raul Brancaccio | m. | Miguel Gomes | 6-1 6-1 |
| Alexey Vatutin | m. | Ronald Slobodchikov | 6-2 6-3 |