Event: IM Brown

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Opponent	Rating	Result
Peter Cooper	135	1 - 0
John M Allan	159	½ - ½
Anthony S Stannard	177	0 - 1
Siefaldin A Holi	147	½ - ½
Mark W White	185	½ - ½
Warren B Dennison	179	½ - ½
Neville R Pearce	133	½ - ½

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

159 = (1115 + 400 * (1 - 1)) / 7)