没有让步的比赛(凡参加者均须在同样条件下进行比赛)

[ noun ]
a race in which all contestants start from scratch (on equal terms)
<noun.event>

Scratch \Scratch\, a.
Made, done, or happening by chance; arranged with little or
no preparation; determined by circumstances; haphazard; as, a
scratch team; a scratch crew for a boat race; a scratch shot
in billiards. [Slang]

{Scratch race}, one without restrictions regarding the
entrance of competitors; also, one for which the
competitors are chosen by lot.