Event: IM Brown

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Opponent	Rating	Result
David C Wedge	168	0 - 1
Peter J Mulleady	175	½ - ½
Peter Rawcliffe	143	0 - 1

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

-105 = (486 + 400 * (0 - 2)) / 3)