Event: IM Brown Shield

Opponent Rating Result
Robert A Newton 1978 0 - 1
Andrew Butterworth 1916 0 - 1
Michael Johnson 1765 1 - 0
David L Pedro 1815 1 - 0
Thomas Rampling 1773 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1929 = (9247 + 400 * (3 - 2)) / 5)

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