all comers

Noun

plural plural-only

Everyone who comes to a given event.

Japanese Meaning

参加者全員 / 来場者全員 / イベントに来るすべての人々

At the annual fair, the pie-eating contest was open to all comers, who lined up eagerly at dawn.

年に一度のフェアで行われたパイ早食い大会は来場者全員が参加でき、夜明けに皆が熱心に列を作った。

Sense（1）

Everyone who comes to a given event.

The meeting is open to all comers.