Event: Online Division 1

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Opponent Rating Result
Rudy Van Kemenade 1750 ½ - ½
Matthew Best 1822 0(def) - 1
Peter J Kitchen 1784 ½ - ½
Ivor Salter 1566 1 - 0
Anthony Purser 1423 0 - 1
Rudy Van Kemenade 1750 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1575 = (8273 + 400 * (1 - 2)) / 5)

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