Event: Division 1

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Opponent Rating Result
W Joe Siddall 0 1 - 0
Richard DP Dineley 2293 0 - 1
Paul R Evans 1972 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1422 = (4265 + 400 * (1 - 1)) / 3)

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