Event: Two East

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Opponent Rating Result
Howard Groves 1833 0 - 1
Yahaya Suleiman 0 0 - 1
Peter A Nickals 1832 ½ - ½
Tyrone R Jefferies 1555 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1205 = (5220 + 400 * (1 - 2)) / 4)

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