Event: Essex Summer Rapid Knockout

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Opponent Rating Result
Russell P White 2065 0 - 1
Russell P White 2065 ½ - ½
David A Sands 2175 ½ - ½
David A Sands 2175 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2020 = (8480 + 400 * (0 - 1)) / 4)

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