PvP after lv 11+?

is there a PvP for players lv 11-20? cause at the gladiator arena says u have to be lv 1-10? so is there another arena for lv 11-20?

Yes there are. I don't remember all of them but for level 11s and up (don't know what level it caps at) you can enter the arena waiting for your expertise in Yak's Bend. That one I know of for sure. Others will have to post the others since I'm not completely familiar with all the other arena areas and level caps associated with each.

Yak's Bend is 1-15. Lion's Arch is 1-17. Henge of Denravi is 1-20, and from there, I assume (key word) that it stays 1-20.