Arpad Elo
= Arpad Elo
{wiki=Arpad_Elo}
Arpad Elo was a Hungarian-American physics professor and chess player, best known for developing the Elo rating system. This system is used to calculate the relative skill levels of players in two-player games such as chess. The Elo rating system assigns a numerical rating to each player, which can increase or decrease based on match results against other players, taking into account the relative ratings of the opponents.