Event: Roger Goldsmith Div 2

Opponent Rating Result
Anthony Taylor 1581 1 - 0
Anthony Chan 1724 0 - 1
Robert L Jones 1703 0 - 1
Eugene Husband 1662 1 - 0
Alan Wadsworth 1756 1 - 0
Piotr Wasilak 1947 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1729 = (10373 + 400 * (3 - 3)) / 6)

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