Event: David Hodgson Trophy

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Opponent Rating Result
Martin Stewart 1885 ½ - ½
Alex Spencer 1308 0 - 1
Martin Stewart 1885 0 - 1
Alex Spencer 1308 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1497 = (6386 + 400 * (1 - 2)) / 4)

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