Event: Summer Max 560 Division

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Opponent Rating Result
Adrian R Lissamore 106 0 - 1
Jonathan P Pincher 91 ½ - ½
Adrian R Lissamore 106 1 - 0
Jonathan P Pincher 91 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-2 = (394 + 400 * (1 - 2)) / 4)

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