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Event: Five Counties Div 1

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Opponent Rating Result
Derek P McGovern 1821 ½ - ½
Brian Moore 1650 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1536 = (3471 + 400 * (0 - 1)) / 2)

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Opponent Rating Result
Lucian Li 1105 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1505 = (1105 + 400 * (1 - 0)) / 1)