Event: Roger Goldsmith Div 2

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Opponent Rating Result
Charles J Richmond 1575 ½ - ½
Alan Wadsworth 1752 1 - 0
Steve Lovell 1820 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1849 = (5147 + 400 * (1 - 0)) / 3)

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