Yes, I got your files, thanks.
And the "C:\Program Files\Tennis Elbow 2009" instead of "C:\Program Files\Tennis Elbow 2011" was a copy/paste that ended badly...

Anyway, I found the bug : in some case, when the Game Engine looks for the possibility to give you a Wildcard, it doesn't check if you already register from a tournament, thus you can end entering 2 times.
It'll be fixed with next update.