Table:
text: Portuguese National Badminton Championships
Past winners
Past winners
Year_ Men_s_singles Women_s_singles Men_s_doubles Women_s_doubles Mixed_doubles
1962 no competition no competition Ramiro Correia Alegre Santos no competition Jorge Gomez Isabel Cabral
1963 Alegre Santos Isabel Cabral Rui Damasio Mario Mateus Emilia Carneiro Maria Jose Guimaraes Jose Azevedo Isabel Rocha
1964 Alegre Santos Isabel Rocha Fernando Pinto Vitor Pinto Alves no competition Alegre Santos Isabel Rocha
1965 Alegre Santos no competition Rui Damasio Mario Mateus Isabel Pinto Isabel Rocha Fernando Pinto Peggy Brixhe
1966 Jose Novais Isabel Rocha Fernando Pinto Vitor Da Costa Conceicao Felizardo Isabel Rocha Alegre Santos Isabel Rocha
1967 Alegre Santos Isabel Rocha Jose Bento Marques Costa Conceicao Felizardo Isabel Rocha Jose Azevedo Isabel Rocha

Question: What was the 1966 men's singles at the Portuguese National Badminton Championships?