Event: Division 6

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Opponent Rating Result
Mick J Renshaw 1473 1 - 0
Sanjay Sathishkumar 1262 ½ - ½
William A Bill Penny 1572 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1569 = (4307 + 400 * (1 - 0)) / 3)

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