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% replaces any number of letters (la% - lake, lamp)_ replaces one letter (ca_ - car, cat)

Crossword clues for Iditarod participant:

DOGTEAMS: Iditarod participants
SLEDDOGS: Iditarod participants
SLEDDOG: Iditarod participant
SLEDTEAMS: Iditarod participants
SLEDDER: Iditarod participant