Event: IM Brown Shield

Opponent Rating Result
Leo A Keely 1932 ½ - ½
Nick Doody 2051 ½ - ½
Michael I Connor 1767 0 - 1
Andrew Butterworth 1917 0 - 1
Jim E Vickery 1837 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1741 = (9504 + 400 * (0 - 2)) / 5)

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