Long story short,
muliple sport betting websites allowed for betting on this lesser known MMA fighting that were supposed to be "live", when in reality they were taped and a week old, but just being put on air now.
So naturally, people put huge money on the winner to win... I'm not sure if they're actually going to get their payouts or not.
Also like the sports books people asked for the person that put a mega bet on the Buccaneers shortly before Tom Brady unretired, as they believe that person had inside knowledge.