Event: 5th Cornwall Online League

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Opponent Rating Result
Andy Young 1473 0 - 1
Ian M George 1830 0 - 1
Anthony Rundle 1499 0 - 1
Petra Nunn 2081 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1521 = (6883 + 400 * (1 - 3)) / 4)

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