Event: Silver Rook

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Opponent Rating Result
Andrew Zigmond 123 0 - 1
Shane Inglis 131 0 - 1
Ranyl W Hughes 88 1 - 0
Steven Hodgson 79 ½ - ½
Edward Adams 80 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-60 = (501 + 400 * (1 - 3)) / 5)

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