Event: Club Championship Silver Section

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Opponent	Rating	Result
Simon R Nichols	1682	½ - ½
David C May	1525	½ - ½
Gerry Clayton	1433	½ - ½
Joe Ross	1788
Colin R Payne	1592

performance = (sum(opponents ratings) + 400(wins-losses)) / games

1547 = (4640 + 400 * (0 - 0)) / 3)