Event: Mini League

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Opponent Rating Result
Pete R Sheppard 0 ½ - ½
Keith Marsh 127 ½ - ½
Tom Devlin 106 1 - 0
Dominic Gallagher 108 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

285 = (341 + 400 * (2 - 0)) / 4)

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