Event: Iceni Live Classic 6 Open

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Opponent	Rating	Result
Paul McMahon	1882	0 - 1
Mike Anderson	1528	½ - ½
Paul Spencer	1696	½ - ½
Neil Greenwood	1809	½ - ½

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

1629 = (6915 + 400 * (0 - 1)) / 4)