Event: Division Four

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Opponent Rating Result
Jon A Asbury 1537 ½ - ½
Awais Zabber 1522 0 - 1
Ken Wise 1509 ½ - ½
Peter J Hughes 1433 1 - 0
David Wilkinson 1400 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1480 = (7401 + 400 * (1 - 1)) / 5)

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