Event: Division One

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Opponent Rating Result
Simon C Smith 1898 0 - 1
Faraz Malik 1948 ½ - ½
Shabir Okhai 2204 ½ - ½
Robert Reynolds 1805 1 - 0
Tim A Lane 1799 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1851 = (9654 + 400 * (1 - 2)) / 5)

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