Event: Derby & District Division 2

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Opponent Rating Result
Adam Routledge 1798 0 - 1
James R Shore 1697 0 - 1
G Burdell 1805 0 - 1
Brian Crofts 1569 0 - 1
Jon Jenson 1492 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1352 = (8361 + 400 * (0 - 4)) / 5)

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