Among Pokémon fans, most know Red as the main protagonist of the Gen I Pokémon games and may wrongly assume he's the games' copy of Ash Ketchum. However, Red's legacy reaches beyond the original games, to the point where he is considered one of the strongest Pokémon Trainers of all time.
Source:https://www.cbr.com/red-pokemon-team-strengths-weaknesses/