Source : Webster's Revised Unabridged Dictionary (1913)

Scorer \Scor"er\, n.
   One who, or that which, scores.

Source : WordNet®

scorer
     n 1: a player who makes a score in a game or contest
     2: a logger who marks trees to be felled
     3: an official who records the score during the progress of a
        game [syn: {scorekeeper}]