front runner
noun /ˌfrʌnt ˈrʌnə(r)/
  /ˌfrʌnt ˈrʌnər/
 - a person, an animal or an organization that seems most likely to win a race or competition(赛跑或竞赛中)最可能获胜者,领先者 - He is one of the front runners in the presidential election.他是总统选举的领先者之一。 
- Woods emerged last night as the early front runner to succeed Ellis as party leader.伍兹昨晚脱颖而出,成为接替埃利斯成为党首的第一候选人。 
 
- He is one of the front runners in the presidential election.