Event: Rapid Play League

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Opponent Rating Result
Jun Yi Kong 0 ½ - ½
Jun Yi Kong 0 ½ - ½
Charlie P Metcalfe 1929 1 - 0
Charlie P Metcalfe 1929 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1165 = (3858 + 400 * (2 - 0)) / 4)

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