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Event: Five Counties Div 3

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Opponent Rating Result
Alex De Villiers 1090 0 - 1
Ali Eren Ulus 1163 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

727 = (2253 + 400 * (0 - 2)) / 2)

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Opponent Rating Result
Ali Eren Ulus 1189 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1189 = (1189 + 400 * (0 - 0)) / 1)