Event: IM Brown

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Opponent Rating Result
David Halpin 0 1 - 0
Mark Shelmerdine 0 ½ - ½
Barry Fulthorpe 0 ½ - ½
Alannah Ashton 0 ½ - ½
C Rodney S Mitchinson 0 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

160 = (0 + 400 * (2 - 0)) / 5)

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