Event: Combined Banks and Insurance Chess League 2011-12

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Opponent Rating Result
Tuyaara Pakhomova 0 0 - 1
Johan Rydahl 0 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-400 = (0 + 400 * (0 - 2)) / 2)

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Opponent Rating Result
Anthony R Kent 0 ½ - ½
Neil T Davies 0 ½ - ½
Brendan Keenan 0 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

133 = (0 + 400 * (1 - 0)) / 3)