Event: Roger Goldsmith Div 2

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Opponent Rating Result
Nathan Weersing 1532 ½ - ½
Jake Williamson 1171 1 - 0
Christopher Thomson 1300 0 - 1
Peter Newton 0 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1101 = (4003 + 400 * (2 - 1)) / 4)

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