question: Who won the mixed restricted when Tomasz Rzeszotko won the mixed veteran and Karina Le Fevre won the U21 womens?
answer: SELECT mixed_restricted FROM table_28211674_3 WHERE mixed_veteran = "Tomasz Rzeszotko" AND u21_womens = "Karina Le Fevre"
context: CREATE TABLE table_28211674_3 (mixed_restricted VARCHAR, mixed_veteran VARCHAR, u21_womens VARCHAR)