timekeepers
n. (尤指体育赛事中的)计时员( timekeeper的名词复数 ); 计时器; 出勤时间计时员; 打拍子的人
A timekeeper is a person or an instrument that records or checks the time.
If you say that someone is a good timekeeper, you mean that they usually arrive on time for things. If you say that they are a poor timekeeper, you mean that they are often late.
The organizing committee will arrange the official timekeepers and staffs along the route.
赛事组委会将于赛道沿线设置裁判和工作人员.