The Portuguese rider Rosa won the Portugal Cup #3 race, finishing ahead a predominantly Portuguese field in Fundao.
Compatriot Joana Monteiro, also nominated to compete at the Baku 2015 European Games, finished second in the women's race behind Spaniard Lucia Vázquez Crespo.
The Swede Rissveds won the women's Vargarda CK race while Cink and his Czech compatriot Jaroslav Kulhavý finished one-two in the Czech MTB Cup #2 in Prague.
In the women's race in Prague, Tereza Huříková finished eighth and Barbora Průdková slumped to ninth.
The men's race in Vargarda was won by Belgian Bart De Vocht, who is not nominated to compete at Baku 2015.
Fourth placed finisher Matthias Wengelin and fellow Swede Emil Lindgren, who finished eighth, also both have tickets for Baku 2015.