Thanks for the Quality of Life updates to this game, an Unlock Medals feature is greatly appreciated.
By the way, while I was playing the game, I decided to do some coding to see what the chance of winning a match was. It turns out the chance of winning any match is 66.93626%.
The code, written in Python, is here: https://www.newgrounds.com/dump/item/05e3c53ca5e3ca95b8cceb932efd9f9f