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So far, the current method is still getting higher accuracy scores than the new method I described. Maybe gravity does matter. This is the idea that if one player's rating is based on several games, and the other player's rating isn't, the rating of the player with fewer games should change even more than it would if their past number of games were equal. This allows the system to get a better fix on a player's ability by adjusting his rating more when he plays against opponents with better established ratings.