Event: IM Brown Shield

Opponent Rating Result
Bien Cuaresma 1681 1 - 0
Steve A Spencer 1669 ½ - ½
David L Pedro 1748 0 - 1
Jay Ryalls 1729 0 - 1
Ben D Science 1687 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1543 = (8514 + 400 * (1 - 3)) / 5)

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