Event: League Division 1

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Opponent Rating Result
Roger W Jennings 1964 ½ - ½
Xiaofeng Zheng 2102 1 - 0
Mark W Rogerson 2073 ½ - ½
Rangarirai Ernest Karumazondo 2104 1 - 0
Rangarirai Ernest Karumazondo 2104 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2229 = (10347 + 400 * (2 - 0)) / 5)

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