Event: Silver Rook

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Opponent Rating Result
David Halpin 63 1 - 0
Paul R Chambers 43 1 - 0
Robin Sarsfield 0 0 - 1
Steve Gombocz 99 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

151 = (205 + 400 * (2 - 1)) / 4)

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