Event: Division 3

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Opponent Rating Result
Ian P F Smith 1500 0 - 1
Albert Merdinian 1300 1 - 0
Svetlana Hurrell 1000 1 - 0
Kenneth Jardine 1573 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1443 = (5373 + 400 * (2 - 1)) / 4)

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