Chantelle Reid, Abdul Burton and Damar Thomas were each beaten in their finals but secured silver medals for Britain.
Burton advances to the men's super-bantamweight final while Callum Makin and Dimeji Shittu secure bronze medals at the European Championships.
Olympic bronze medallist Alice Kinsella returns to the Great Britain squad for the Artistic Gymnastics World Championships less than a year after becoming a mother.
Chantelle Reid and Damar Thomas will fight for gold after semi-final wins on Wednesday.
British riders are seen as having a strong chance of success at this weekend's Road World Championships, with rising young talent emerging.