Event: OTB Rapid Championship

Opponent Rating Result
David Spearman 2087 0 - 1
A Fin O'Regan 1037 1 - 0
Shaurya Shivhare 857 1 - 0
Istvan Karacsony 1617 0 - 1
Paul R Barclay 1751 0 - 1
David Smith 1531 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1347 = (8880 + 400 * (2 - 4)) / 6)

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