Event: Steele Cup

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Opponent	Rating	Result
James J Essinger	1878	0 - 1
Paul Carfrae	1683	0 - 1
Robert Starley	2161	0 - 1
Colin G Gregory	1615	½ - ½
George E Hollands	1946	0 - 1
Manoj Natarajan	1780	0 - 1
John B Atherton	1870	0 - 1

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

1505 = (12933 + 400 * (0 - 6)) / 7)