 For players with ratings below 2000, winning a cash prize of $2,000 or more raises that player's rating floor to the closest 100-point level that would have disqualified the player for participation in the tournament.For example, if a player won $4,000 in a 1750-and-under tournament, they would now have a rating floor of 1800.Pairwise comparisons form the basis of the Elo rating methodology.