Event: Div 2 - Weston Trophy

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Opponent Rating Result
Abdul Qahar Abdul Quadri 0 ½ - ½
Nathaniel Holroyd-Doveton 1725 1 - 0
John S Neely 1735 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1420 = (3460 + 400 * (2 - 0)) / 3)

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