Event: Div 2 - Weston Trophy

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Opponent Rating Result
Tim Gollins 1874 1 - 0
Andrew Butterworth 1914 ½ - ½
Nathaniel Holroyd-Doveton 1707 1 - 0
Stuart Crosthwaite 1935 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2158 = (7430 + 400 * (3 - 0)) / 4)

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