Event: Denis Otter

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Opponent Rating Result
Stephen Ward 155 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-245 = (155 + 400 * (0 - 1)) / 1)

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Opponent Rating Result
George Markovic 150 0 - 1
Ray Rushworth 0 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-125 = (150 + 400 * (0 - 1)) / 2)