Event: Silver Rook

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Opponent Rating Result
Alan S Metcalfe 1587 0 - 1
Dominic Gallagher 1685 ½ - ½
David Robinson 1767 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1546 = (5039 + 400 * (0 - 1)) / 3)

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