Event: Div3

Opponent Rating Result
Nigel Wright 133 ½ - ½
Paul Kelman 139 ½ - ½
John G Kelsall 141 1 - 0
Julian Cast 163 ½ - ½
Ronald S Harrison 121 1 - 0
Robert Mercer 122 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

337 = (819 + 400 * (3 - 0)) / 6)

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