Event: IM Brown

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Opponent	Rating	Result
Miles D Edwards-Wright	2034	0 - 1
J Hall	1915	½ - ½
David Harasym	1792	½ - ½
Tim M Turner	1897	0 - 1
Chris Jardine	1813	½ - ½
Greg T Eagleton	2107	0 - 1
Paul RH Clarke	1725	1 - 0

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

1783 = (13283 + 400 * (1 - 3)) / 7)