There is different version of WoW in the Asian regions with 10- and 25-man lockouts, higher ilvl and boss health.
This is greatly affecting iLvl Rankings and also may affect Progress Rankings, so we have to make separate rankings for Americas/Europe/Oceanic and Asian countries.

You will see only Western listings by default (instead of World) and you can choose all the other regions (including Asian ones) from the main menu.

Note that only Tier 14+ progress will be separated, previous tiers were not changed.