Ok let me try to explain.
we have Grand Champion, Runner up GC, Mature Champ, Male Champ, Young Champ, Best Baby, Baby Grand Champ. All of these awards are taken out of certain sizes. Then we have Best in Size our club has 7 sizes, So the judges pick out the best fish in each size. In other words all the fish in size 1 ( all varities) the judges pick the best one... Then we have 13 best in class, judges chose for example all kohakus in the show from all sizes the best one. etc... hope this helps you understand.