Event: IM Brown Shield

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Opponent	Rating	Result
Michael I Connor	1744	½ - ½
Michael Johnson	1749	1 - 0
Dominic Gallagher	1712	½ - ½
Jack Howorth	1731	1 - 0
Andy J Bagley	1835	½ - ½
Stephen Bastable	1682	½ - ½
David E Lord	1906	½ - ½

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

1880 = (12359 + 400 * (2 - 0)) / 7)