Event: Sheffield Individual Championships

Opponent Rating Result
Daniel JS Sullivan 2075 0 - 1
Colin Reid 1460 1 - 0
Geoffrey D Brown 1769 1 - 0
Nathaniel Holroyd-Doveton 1745 0 - 1
Chris CW Shephard 2141 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1838 = (9190 + 400 * (2 - 2)) / 5)

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