Event: IM Brown

Opponent Rating Result
William J Egan 0 0 - 1
Ben Emmerson 0 1 - 0
Steve Harrington 0 ½ - ½
David Summerland 0 0 - 1
Neil Griffiths 0 1 - 0
Jim R Postill 0 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

67 = (0 + 400 * (3 - 2)) / 6)

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