Event: Division 2

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Opponent	Rating	Result
Leslie J Crane	1855	½ - ½
Malcolm P Kingsley	1893	1 - 0
Ken Groce	1713	1 - 0
Michael D Bradford	1608	½ - ½
Ken W Clow	1870	1 - 0
Mark R A Murrell	1861	½ - ½
Fred R Whitefield	1685	1 - 0

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

2012 = (12485 + 400 * (4 - 0)) / 7)