Event: Grand Prix S5

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Opponent Rating Result
Caroline L Mountford 1603 0 - 1
David E Shiers 1649 0 - 1
Owen Frodsham 1050 1 - 0
David A Hallen 1486 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1347 = (5788 + 400 * (1 - 2)) / 4)

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