Talk:Battle Arena/@comment-15084733-20130817155149/@comment-4830404-20130817162842

The calculator was originally made for the regular Arena. The tournaments were added after that. They use the same code.

Losing 4 matches in a row with a 75% chance is not unheard of, that's just the nature of randomness sometimes. If you solve .9 = 1 - .75^x, you will see that you only gain over a 90% chance of winning if you try 9 times. To make that chance over 99%, you would have to reach 17 tries.