预测市场订单簿显示麦格雷戈比赛未现内幕交易

Many people believe the McGregor fight was rigged.

A prediction market's order book is a public record of what informed traders know and when they know it. As prediction markets become the most liquid venue to trade any event, they're also the most likely place for informed money to show up.

During the one-minute match, there's no significant evidence that anybody was trading on this information.

This isn't definitive proof that the fight was clean; only that if it was rigged, nobody traded on knowing it would end like this.