Parimutuel betting could occur pretty easily here using Polls (looks like some are already doing it).

A bot could automate payouts too.

https://en.wikipedia.org/wiki/Parimutuel_betting

https://memo.cash/post/73052a16ffbf6e9b28d4e5d067c2cf8c4fac85cc5fef0ac1835a9f9544300905