There is a Tool called Arena Helper
It requires you to type the name and realm into the boxes, which then grab the data off wow armoury.
The only bad things about this is that if people have accents in their names such as äÜáÂ, I struggle to search them. Also it doesn't like to search some names sometimes, its a bit buggy.
I was wondering if anyone would be interested in making/editing this to make it scan automatically the names and realm(if this is even possible) + Fix the name searching bug(doesn't like my friend, Deadsnealy-Boulderfist).
Thanks, here is what it looks like