I actually believe that the coin in a cup shuffle is not by chance. I have been tracking them and every time I see where the coin cup stops before they spin, I go there and win the coins. The only time I fail is if I fail to track it, which happens from time to time, but when I know I’ve tracked it, I win the coins. I’ve only beaten the whole thing twice. Once on my main and once on an alt. It’s still fun though, despite it’s difficulty winning the whole thing, I like it.