N-COUNT
（竞赛中的）领跑者，领先者
A pacesetter is someone who is in the lead during part of a race or competition and therefore decides the speed or standard of the race or competition for that time.
例句
Real's victory keeps them five points behind the pacesetters, Barcelona...
皇家马德里队获胜，与领先的巴塞罗那队仍然保持着5分的差距。
Hammond was the early pace-setter.
起初领先的是哈蒙德。