Event: Sheffield Individual Championships

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Opponent Rating Result
Jay Ryalls 1721 0 - 1
Elliott Spencer 1564 0 - 1
David Burn 1502 ½ - ½
Midhun Varghese 1411 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1450 = (6198 + 400 * (1 - 2)) / 4)

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