Event: Cambs Division 2

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Opponent Rating Result
Peter Baddeley 1533 ½ - ½
Jimmy Blair 1413 1 - 0
Norman Wedley 1458 0 - 1
Matthew Cooper 0 0 - 1
James Beck 1098 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1100 = (5502 + 400 * (2 - 2)) / 5)

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