I am not currently playing arena, as I just started playing again. I do, however, focus my play around arena and pvp in general, and managed to reach 2200 in season 6 (one year ago). So i'll link to the achievements and hope that'll do to allow me in ;-)

http://armory.wow-europe.com/charact...&gn=Nightshade
http://armory.wow-europe.com/charact...&gn=Nightshade
http://armory.wow-europe.com/charact...&gn=Nightshade
http://armory.wow-europe.com/charact...&gn=Nightshade

Player vs. Player -> Arena -> High Five: 2200

Hopefully, thank you :-)