Event: Division 4

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Opponent Rating Result
Nick Wiggett 1462 0 - 1
Richard Devonport 1448 0 - 1
Saul Marks 1458 1 - 0
Paul Capstick 1330 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1325 = (5698 + 400 * (1 - 2)) / 4)

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