Sailors Jorge Lima and José Luís Costa were the first Portuguese to qualify for the Tokyo Games following their performances in the the World Olympic Classes Games in Aarhus, Denmark.
In athletics, five athletes already have minimum qualification times, including João Vieira, who, at the age of 43, has qualified for the 50km walk. This should be his sixth time in the Games. Only sailor João Rodrigues has represented Portugal more times than Vieira.
Pedro Pichardo in the triple jump, Patrícia Mamona, Evelise Veiga and Carla Salomé Rocha also have achieved minimum qualification times.
There are five swimmers with minimums, Alexis Santos, a semifinalist in Rio2016 and Gabriel Lopes in the 200m medley, Tamila Holub and Diana Durães in the 1,500m freestyle, and Ana Catarina Monteiro in the 200m butterfly.
Fu Yu will also repeat her presence in the women's table tennis tournament, after qualifying with her performance in the final of the European Games.
Canoeists will have their attempt to qualify at the World Championships, between 21-25 August, in Szeged, Hungary.
Nine Portuguese judokas currently qualify according to the latest rankings, including Catarina Costa, seventh in -48 kg, and Jorge Fonseca, 10th in -100 kg.
Telma Monteiro, who won bronze in the -57 kg in Rio de Janeiro, is currently out of the automatic qualification zone.
João Sousa, who on Monday rose to 49th in the world tennis hierarchy, is in the qualifying zone for the individual tournament.
Fifth in Rio2016, João Pereira is currently within the qualifying zone along with Ricardo Santos in golf.
In surfing, one of the new sports in the Tokyo Games, Frederico Morais is currently out of the top 10 already qualified on the world circuit, by one place.
Another new Olympic sport, karate, may also have Portuguese representatives, with Patrícia Esparteiro's bronze medal performance in kata at the European Games in Minsk.