Event: Division One

Opponent Rating Result
Paul S Cooksey 2326 0 - 1
Roger D de Coverly 1924 ½ - ½
Ishan VH Wiratunga 2104 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1851 = (6354 + 400 * (0 - 2)) / 3)

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