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Event: Five Counties Div 2

Opponent Rating Result
Adrian Bailey 1707 ½ - ½
William Chen 1320 0 - 1
Anish R Aurangabadkar 1054 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1227 = (4081 + 400 * (0 - 1)) / 3)

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