Event: R Division

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Opponent Rating Result
Dan Burgess 1432 1 - 0
Thomas Humphreys 1244 0 - 1
Thomas Humphreys 1244 ½ - ½
Dan Burgess 1432 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1438 = (5352 + 400 * (2 - 1)) / 4)

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