Event: Essex Summer Rapid Knockout

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Opponent Rating Result
Martin Van Tol 1730 1 - 0
Martin Van Tol 1730 ½ - ½
Steven JL Rix 2019 1 - 0
Steven JL Rix 2019 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2175 = (7498 + 400 * (3 - 0)) / 4)

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