Over the past 22 years, Ash Ketchum has fought countless Pokemon gym leaders, fled from Godzilla-sized Pokemon robots, and even been turned to stone and brought back to life by Pikachu’s tears — but finally, he’s achieved what few thought possible. Ash Ketchum has finally become a Pokemon League Champion.
In the 139th episode of the Pokemon Sun and Moon anime series, in the tropical Alola region, Ash finally took home the title of Pokemon League Champion, according to ComicBook.com. Winning the championship earned him the title of Pokemon Master.
Source: IGN.com Ash Ketchum Finally Becomes a Pokemon League Champion