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

Crossword clues for Where 3-year-olds race. 5 letters:

EPSOM: Where 3-year-olds race.
LEGER: St. ___, British race, for 3-year-olds.
PREAKNESS: Classic race for 3-year-olds