Event: IM Brown

Opponent Rating Result
Richard O Callis 139 ½ - ½
Martin S Simmonds 135 0 - 1
Stephen Burton 111 1 - 0
Robert A Dean 148 ½ - ½
William J Egan 122 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

131 = (655 + 400 * (1 - 1)) / 5)

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