Event: Division Two

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Opponent Rating Result
Irvin B Ortega 212 0 - 1
Charles V Van Der Westhuizen 149 ½ - ½
Raymond Carpenter 157 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

173 = (518 + 400 * (1 - 1)) / 3)

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