Event: IM Brown

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Opponent	Rating	Result
Marcin Skopinski	127	1 - 0
Leo A Keely	178	0 - 1
Stephen Forbes	118	1 - 0
Joe Varley	138	0 - 1
Peter Micklethwaite	169	0 - 1
Phil R Watson	192	0 - 1
Michael A Fox	128	½ - ½
Pete Leonard	212	½ - ½

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

58 = (1262 + 400 * (2 - 4)) / 8)