Event: IM Brown Shield

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Opponent	Rating	Result
Alec Ward	1776	½ - ½
David A Patrick	1803	½ - ½
Peter Catt	1781	½ - ½

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

1787 = (5360 + 400 * (0 - 0)) / 3)