Event: Division 2 - Under 6800

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Opponent	Rating	Result
Trefor F Thynne	1933	½ - ½
Jack Smith	1457	0 - 1
Doug Morton	1874	½ - ½

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

1621 = (5264 + 400 * (0 - 1)) / 3)