Event: Roger Goldsmith Div 2

Opponent Rating Result
Michael MJ Osborn 1553 1 - 0
Robert L Jones 1702 ½ - ½
Piotr Wasilak 1951 ½ - ½
Adam John 1921 1 - 0
Charles J Richmond 1593 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1984 = (8720 + 400 * (3 - 0)) / 5)

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