在英语中，参赛的人通常被称为 "competitor" 或 "participant"。

"Competitor" 来自拉丁文 "competere"，意思是 "竞争"、"竞争对手"。例如：

He is a strong competitor in the race. 他是赛跑中的一位强大竞争对手。
The competitors in the game were evenly matched. 游戏中的竞争对手实力相当。

"Participant" 来自拉丁文 "particeps"，意思是 "参与者"。例如：

All the participants in the study were given a questionnaire. 所有参与研究的人都收到了一份问卷。
She was the only participant in the workshop who had previous experience in the field. 她是培训班中唯一有过相关工作经验的参与者。