Event: West of England Counties Online Championship

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Opponent Rating Result
Philip J Williams 1842 0 - 1
Chris Lowe 2016 ½ - ½
Melissa Hamilton 1658 1 - 0
David Parsons 1647 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1891 = (7163 + 400 * (2 - 1)) / 4)

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