Event: IM Brown Shield

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Opponent Rating Result
Peter Shaw 2098 ½ - ½
Toby Quaite 1955 0 - 1
Daniel Langhamer 1832 0 - 1
Andrew Birtwhistle 1779 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1816 = (7664 + 400 * (1 - 2)) / 4)

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