You can get it out of Jeremy's xterium script. But I don't know if you are willing to go throw lot of files to search for Tournament code and then add it to your script. Also I am not sure how secure and bug free his tournament is.
But if you do not want to make it yourself or buy it from someone then this is one thing you can try.
Good luck!

in my signature, and dont worry, code you can find at my github is pretty safe
Jeremy