Event: Division 2 East

Opponent Rating Result
Tim F Woodward 153 1 - 0
A Clive Walley 160 ½ - ½
Chris S Purry 161 0 - 1
Chris S Purry 161 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

259 = (635 + 400 * (2 - 1)) / 4)

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