Event: Roger Goldsmith Div 1

Opponent Rating Result
Yoav Pilowsky Bankirer 1738 1 - 0
David Short 1755 0 - 1
Yoav Pilowsky Bankirer 1740 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1744 = (5233 + 400 * (1 - 1)) / 3)

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