Event: IM Brown Shield

Opponent Rating Result
Roger W Jennings 1900 ½ - ½
William Boothman 1760 ½ - ½
Mark Waterhouse 1705 ½ - ½
Jim E Vickery 1841 ½ - ½
Max Parkhouse 2042 0 - 1
John R Mercy 1766 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1836 = (11014 + 400 * (1 - 1)) / 6)

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