Event: Ken Bloodworth League

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Opponent	Rating	Result
Anthony Tatam	1465	0 - 1
Martyn Ingham	1454	1 - 0
Graham A Mill-Wilson	1494	1 - 0
John E Dean	1566	1 - 0
Philip A Lochhead	1576	0 - 1
Geoffrey Wilson	1461	1 - 0
Raymond Milner	1551	0 - 1
Martyn Ingham	1454	1 - 0
Philip A Lochhead	1576	1 - 0
Graham A Mill-Wilson	1494	1 - 0
Raymond Milner	1551	1 - 0
Anthony Tatam	1465	1 - 0
Geoffrey Wilson	1461	1 - 0
John E Dean	1566	1 - 0

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

1738 = (21134 + 400 * (11 - 3)) / 14)