Portugal
15.04.99, 26 years
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Portugal
23.09.98, 26 years
INFO: click on player name to show detailed player statistics
Guilherme Sergio vs. Afonso Cortez - head to head matches
Guilherme Sergio form & Afonso Cortez form
Guilherme Sergio - last matches
 Portugal F7 - Clay |
| 17.04.17 q 1 | vs. Diogo Lourenco | 6-4, 6-3 |  | match details |
| 17.04.17 q 2 | vs. Miguel Semedo | 6-4, 6-1 | | match details |
| 17.04.17 qual. | vs. Daniel Rodrigues | 6-72, 2-6 |  | match details |
| Portugal F5 - Clay |
| 03.04.17 q 1 | vs. Flemming Peters | 4-6, 2-6 | | match details |
| Portugal F4 - Hard |
| 27.03.17 q 1 | vs. Duarte Nuno Teixeira | 6-1, 6-0 | | match details |
| 27.03.17 q 2 | vs. Billy Harris | 2-6, 2-6 | | match details |
| Portugal F3 - Hard |
| 13.03.17 | vs. Goncalo Ferreira | 6-3, 6-3 | | match details |
| 13.03.17 q 1 | vs. Juan Pablo Canas Garcia | 3-6, 6-2, 2-0, Juan Pablo Canas Garcia - retired | | match details |
| 13.03.17 q 2 | vs. Bart Van Den Berg | 3-6, 7-5, 2-6 | | match details |
| Portugal F2 - Hard |
| 06.03.17 | vs. Jorge Hernando-Ruano | 7-5, 1-6, 2-6 | | match details |
| Portugal F1 - Hard |
| 27.02.17 | vs. Pietro Licciardi | 2-6, 3-6 | | match details |
| Portugal F8 - Hard |
| 11.07.16 q 2 | vs. Joao Monteiro | 0-6, 3-6 | | match details |
| 11.07.16 q 1 | vs. Afonso Cortez | 6-2, 6-2 | | match details |
| Portugal F7 - Hard |
| 23.05.16 q 2 | vs. Catalin-Ionut Gard | 1-6, 1-6 | | match details |
| 23.05.16 q 1 | vs. Joao Antonio | 6-3, 1-6, 6-2 | | match details |
| Portugal F6 - Hard |
| 16.05.16 q 1 | vs. Alan Gleeson | Alan Gleeson - walk over | | match details |
| 16.05.16 q 2 | vs. Juan Pablo Canas Garcia | 1-6, 3-6 | | match details |
| Portugal F5 - Hard |
| 09.05.16 q 2 | vs. Marcus Walters | 2-6, 3-4, - Guilherme Sergio - retired | | match details |
| 09.05.16 q 1 | vs. Pedro Barosa | 6-2, 3-6, 6-2 | | match details |
| Portugal F4 - Clay |
| 02.05.16 q 1 | vs. Joao Faria Carvalho | 5-7, 2-6 | | match details |
| Portugal F3 - Hard |
| 07.03.16 | vs. Alejandro Artunedo | 2-6, 0-6 | | match details |
| Portugal F13 - Clay |
| 05.10.15 q 1 | vs. Manuel Almeida | 3-6, 5-7 | | match details |
| Portugal F7 - Hard |
| 25.05.15 q 2 | vs. Alejandro Ortega Palacios | 1-6, 5-7 | | match details |
| 25.05.15 q 1 | vs. Mikhail Zaytsev | 6-1, 6-0 | | match details |
| Portugal F6 - Hard |
| 18.05.15 q 1 | vs. Afonso Fazendeiro | 4-6, 6-2, 2-6 | | match details |
| Portugal F4 - Clay |
| 04.05.15 q 1 | vs. Domingos Sousa Coutinho | 6-4, 6-2 | | match details |
| 04.05.15 q 2 | vs. Manuel Almeida | 0-6, 4-6 | | match details |
Afonso Cortez - last matches
 Spain F23 - Clay |
| 11.08.18 q 1 | vs. Manuel Barros | 1-6, 6-75 | | match details |
| Portugal F13 - Clay |
| 30.07.18 q 2 | vs. Elio Jose Ribeiro Lago | 4-6, 3-6 | | match details |
| 28.07.18 q 1 | vs. Christopher Corrao | 6-1, 6-3 | | match details |
| Portugal F11 - Hard |
| 03.07.18 q 2 | vs. Roberts Grinvalds | 1-6, 1-6 | | match details |
| 01.07.18 q 1 | vs. Nicholas Jovanovski | 4-6, 6-1, 6-3 | | match details |
| Portugal F10 - Hard |
| 24.06.18 q 2 | vs. Joao Antonio | 1-6, 0-6 | | match details |
| 23.06.18 q 1 | vs. Rodrigo Magalhaes | 3-6, 6-2, 6-3 | | match details |
| Spain F15 - Hard |
| 10.06.18 q 1 | vs. Benjamin Winter Lopez | 1-6, 2-6 | | match details |
| Portugal F15 - Clay |
| 07.08.17 q 1 | vs. Pedro Gabriel Rodrigues | 4-6, 5-7 | | match details |
| Portugal F14 - Clay |
| 31.07.17 q 1 | vs. Fernando Gouveia | 6-76, 6-2, 6-1 | | match details |
| 31.07.17 q 2 | vs. Eduardo Ribeiro | 2-6, 5-7 | | match details |
| Portugal F10 - Hard |
| 03.07.17 q 1 | vs. Ernesto De Haro Sotorrio | 6-3, 2-6, 6-4 | | match details |
| 03.07.17 q 2 | vs. Francisco Rocha | 4-6, 1-6 | | match details |
| Portugal F9 - Hard |
| 26.06.17 q 1 | vs. Jose Campos | 4-6, 6-4, 0-6 | | match details |
| Portugal F8 - Hard |
| 19.06.17 q 2 | vs. Bogdan Djurdjevic | 0-6, 4-6 | | match details |
| 19.06.17 q 1 | vs. Sharanraj Yuvaraj | 6-4, 6-1 | | match details |
| Portugal F9 - Hard |
| 18.07.16 q 1 | vs. Victor Ouvrard | 0-6, 0-6 | | match details |
| Portugal F8 - Hard |
| 11.07.16 q 1 | vs. Guilherme Sergio | 2-6, 2-6 | | match details |
| Portugal F13 - Clay |
| 05.10.15 q 1 | vs. Pedro Gabriel Rodrigues | 1-6, 6-4, 3-6 | | match details |
