In cricket|lang=en terms the difference between scorer and striker
is that
scorer is (cricket) either of a pair of people, one provided by each side, who record in a specially formatted book, every ball bowled, every run scored, and every wicket that falls while
striker is (cricket) the batsman who is currently facing the bowler and defending his wicket.
As nouns the difference between scorer and striker
is that
scorer is one who scores while
striker is an individual who is on strike.