Queen of The Deep (Patreon)

Here's an idea: Queen of the ___ Match 

Fight rules: All strikes, hugs, scissors and throws are legal. Joint-locks and eyepokes are not allowed. 

Matches are fought on a raised plat form surrounded by a padded area several feet below. A match consists of ten rounds. Each round has no time limit, and ends when one fighter has been removed from the platform.

The winner of the first round is now the Queen, and after a 2-minute break she'll fight a new challenger in the next round. If a challenger defeats the Queen, she'll be the Queen for the next round.

All fighters get $1000 to participate, and a $1000 prize for becoming Queen. The amount of the prize will double with each successful defense. The winner of the tenth round will also get a $50000 bonus. 

(This location is in a basement surrounded by water, that's why it's Queen of the Deep in the sample.)