Event: Division 2

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Opponent Rating Result
Matthew Pannett 1791 0 - 1
Steve Merchant 1578 0 - 1
Graham Ewens 1765 0 - 1
Hooman Honarvarmahalati 0 0 - 1
David Wallis 1595 0 - 1
Anthony Stanton 1723 1 - 0
John Pye 1792 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1292 = (10244 + 400 * (2 - 5)) / 7)

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