Event: Jim Barrington Plate

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Opponent Rating Result
Scott Leadbetter 106 1 - 0
Roger Ball 118 ½ - ½
Rob Bricknell 126 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

250 = (350 + 400 * (1 - 0)) / 3)

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