Event: Essex Summer Rapid Knockout

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Opponent Rating Result
Peter A Nickals 1641 1 - 0
Peter A Nickals 1641 1 - 0
Peter Jaszkiwskyj 1969 1 - 0
Peter Jaszkiwskyj 1969 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2205 = (7220 + 400 * (4 - 0)) / 4)

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