Rank history:

Silver I (X)
Silver II (X)
Silver III (X)
Silver IV (X)
Silver Elite (✔)
Silver Elite Master (✔)
Gold Nova I (✔)
Gold Nova II (✔)
Gold Nova III (✔)
Gold Nova Master (✔)
Master Guardian (✔)
Master Guaridan II (✔)
Master Guardian Elite (✔)
Distinguished Master Guardian (✔)
Legendary Eagle (✔)
Legendary Eagle Master (✔)
Supreme First Class (✔)
Global Elite (✔)