Event: SCCA Division 1

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Opponent	Rating	Result
Stephen Lewis	1953	½ - ½
Timothy J Wesson	1778	1 - 0
Jim Buis	1788	½ - ½
Ed Kirkham	1780	1 - 0
Haroon Majeed	1780	0 - 1
Stephen W Ruthen	1818	0 - 1
Robert W Stephens	0	0 - 1

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

1500 = (10897 + 400 * (2 - 3)) / 7)