Event: Division Four

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Opponent	Rating	Result
Victor J Brown	1563	½ - ½
Christopher J Evans	1720	0 - 1
Frank C Jimenez	1630	½ - ½
Stuart Black	1589	½ - ½
Mark E Tallis	1660	0 - 1
Mike J Johnson	1578	½ - ½
George Mitchell	1488	½ - ½
Chris East	1557	0 - 1

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

1448 = (12785 + 400 * (0 - 3)) / 8)