>>54934391>>54935575Play LGPE, until the events of gen 1, Kanto's league was like Alola's island challenge, you clear the objectives (gyms or trials) and then have the chance to beat the four greatest trainers in the famous mountain range of the region (Elite 4 in the Indigo Plateau or the Kahunas in Mount Lanakila) and then you are the champion (Pokemon League Champion in Kanto and Island Challenge Champion in Alola), but only until someone else does the same as you.
>Lance: Chase! You are now the Pokémon League Champion! ... ... ... ...Or, you would have been, but you have one more challenge left. There is one more Trainer to face! That Trainer is—>Oak: Hello there, Chase! Congratulations on your victory over Lance! Hm? What’s with that look of surprise?>Lance: Haha... Your timing is perfect, Professor. Chase! The one you will face is... Professor Oak! Well, not really. It’s Trace! He beat the Elite Four before you. He is the Pokémon League Champion.>Oak: That’s right! In the past, Trainers who defeated the Elite Four were only recorded as Champions. This time, however, we’ll be officially establishing the Champion as a part of the Pokémon League!Kanto's league was also the first one to ever implement the figure of the champion in the league, curiously, which has some funny implications for Steven and Wallace's reign in Hoenn.
>There’s email for Professor Oak! ... “I heard that the Pokémon League now has a Champion. Congratulations! “Pokémon Leagues all around the world will also have Champions from now on. “It’s very interesting to me because there are no Gyms or even a Pokémon League where I live! “I’m thinking about going to the Indigo Plateau to have a look. Samson”Basically, Green didn't fight anyone after Kanto's Elite Four, he just took the Champion title and waited for his first challenger (Red), just like we didn't fight anyone after Alola's Elite Four, we just took the Champion title and waited for our first challenger (Kukui in SM, Hau in USUM).