Event: Roger Goldsmith Div 2

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Opponent Rating Result
Zbynek Strela 1726 ½ - ½
Shivum Gordon-Shah 1600 1 - 0
Michael MJ Osborn 1553 1 - 0
Mark Webb 1400 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1870 = (6279 + 400 * (3 - 0)) / 4)

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