Event: SCCU County Championship: u1850

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Opponent	Rating	Result
Rezin C Catabay	1795	0 - 1
Steve Madden	1842	0 - 1
Russell Campbell	1794	½ - ½
Chris PJ Bernard	1790	1 - 0
Chris PJ Bernard	1790	1 - 0
Alan E Riddoch	1759	0 - 1

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

1728 = (10770 + 400 * (2 - 3)) / 6)