Porto CH 2021 ATP
Final
| Winner | Loser | Score | |
|---|---|---|---|
| Altug Celikbilek | d. | Quentin Halys | 6-2 6-1 |
Semifinals
| Winner | Loser | Score | |
|---|---|---|---|
| Quentin Halys | d. | Emilio Gomez | 6-4 6-4 |
| Altug Celikbilek | d. | Sergiy Stakhovsky | 6-2 6-1 |
Quarterfinals
| Winner | Loser | Score | |
|---|---|---|---|
| Quentin Halys | d. | Steven Diez | 6-3 6-0 |
| Emilio Gomez | d. | Gastao Elias | 6-3 7-6(4) |
| Sergiy Stakhovsky | d. | Goncalo Oliveira | 7-6(2) 7-6(5) |
| Altug Celikbilek | d. | Tatsuma Ito | 7-5 6-3 |
Round of 16
| Winner | Loser | Score | |
|---|---|---|---|
| Steven Diez | d. | Prajnesh Gunneswaran | 6-3 1-6 6-4 |
| Quentin Halys | d. | Thanasi Kokkinakis | 7-6(5) 6-4 |
| Emilio Gomez | d. | Geoffrey Blancaneaux | 6-1 6-7(7) 6-1 |
| Gastao Elias | d. | Denis Istomin | 7-5 6-4 |
| Sergiy Stakhovsky | d. | Matteo Viola | 6-2 4-6 7-5 |
| Goncalo Oliveira | d. | Peter Polansky | 7-6(3) 6-4 |
| Tatsuma Ito | d. | Frederico Ferreira Silva | 6-4 1-0 RET |
| Altug Celikbilek | d. | Thiago Seyboth Wild | 7-6(5) 6-3 |
Round of 32
| Winner | Loser | Score | |
|---|---|---|---|
| Prajnesh Gunneswaran | d. | Mathias Bourgue | 6-2 3-6 6-1 |
| Steven Diez | d. | Maxime Janvier | 7-5 2-6 7-6(5) |
| Quentin Halys | d. | Ulises Blanch | 6-3 3-6 6-1 |
| Thanasi Kokkinakis | d. | Roberto Marcora | 7-6(3) 6-1 |
| Emilio Gomez | d. | Nicola Kuhn | 7-5 6-2 |
| Geoffrey Blancaneaux | d. | Joao Domingues | 6-7(5) 6-2 6-4 |
| Gastao Elias | d. | Sem Verbeek | 6-7(7) 6-4 6-1 |
| Denis Istomin | d. | Guido Andreozzi | 6-4 6-3 |
| Sergiy Stakhovsky | d. | Go Soeda | 2-6 6-2 7-6(5) |
| Matteo Viola | d. | Roberto Cid | 6-1 4-1 RET |
| Goncalo Oliveira | d. | Nuno Borges | 6-1 6-2 |
| Peter Polansky | d. | Alejandro Tabilo | 1-6 6-1 6-2 |
| Frederico Ferreira Silva | d. | Lorenzo Giustino | 6-4 4-6 6-3 |
| Tatsuma Ito | d. | Luis Faria | 6-0 6-2 |
| Altug Celikbilek | d. | Yosuke Watanuki | 6-3 6-7(5) 6-3 |
| Thiago Seyboth Wild | d. | Renzo Olivo | 6-4 6-2 |
Qualifying round 2
| Winner | Loser | Score | |
|---|---|---|---|
| Geoffrey Blancaneaux | d. | Daniel Rodrigues | 6-7(1) 7-5 6-3 |
| Sem Verbeek | d. | Francisco Cabral | 7-6(4) 6-3 |
| Yosuke Watanuki | d. | Robert Galloway | 6-1 6-1 |
| Ulises Blanch | d. | Luis Faria | 6-3 6-3 |
Qualifying round 1
| Winner | Loser | Score | |
|---|---|---|---|
| Daniel Rodrigues | d. | Tiago Cacao | 6-3 3-0 RET |
| Geoffrey Blancaneaux | d. | Pedro Araujo | 4-6 6-2 6-3 |
| Francisco Cabral | d. | Ronald Slobodchikov | 6-2 6-2 |
| Sem Verbeek | d. | Sasi Kumar Mukund | 3-6 6-3 7-5 |
| Robert Galloway | d. | Alexander Zhurbin | 6-2 6-2 |
| Yosuke Watanuki | d. | Duarte Vale | 6-2 6-4 |
| Luis Faria | d. | Denis Yevseyev | 6-2 7-6(3) |
| Ulises Blanch | d. | Goncalo Falcao | 6-1 6-2 |