front runner

or front-run·ner, front·run·ner


noun

a person who leads in any competition.
an entrant in a race who breaks to the front immediately and establishes the pace for the field.
an entrant in a race who performs well only when ahead of the field.

Origin of front runner

An Americanism dating back to 1935–40

Example sentences from the Web for frontrunner

British Dictionary definitions for frontrunner

frontrunner
/ (ˈfrʌntˌrʌnə) /

noun

informal the leader or a favoured contestant in a race, election, etc