scorer vs participant

scorer and participant both are nouns.

Word	Noun	Adjective	Verb	Adverb
scorer	Yes	No	No	No
participant	Yes	No	No	No

As nouns, participant is a hypernym of scorer; that is, participant is a word with a broader meaning than scorer:

Other hypernyms of scorer include player.

scorer (noun)	participant (noun)
a player who makes a score in a game or contest	someone who takes part in an activity
a logger who marks trees to be felled	a person who participates in or is skilled at some game
an official who records the score during the progress of a game