Event: Division 3 East

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Opponent Rating Result
Jack Opie 117 0 - 1
Graeme Lane 110 1 - 0
Geoff T Berryman 103 ½ - ½
Yuvraj Kumar 109 0 - 1
Gary Woods 78 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-57 = (517 + 400 * (1 - 3)) / 5)

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