 Elo's original suggestion, which is still widely used, was a simple linear adjustment proportional to the amount by which a player overperformed or underperformed their expected score.The maximum possible adjustment per game, called the K-factor, was set at "K" = 16 for masters and "K" = 32 for weaker players.Supposing Player A was expected to score formula_25 points but actually scored formula_26 points.