Event: OTB Rapid Championship

Opponent Rating Result
Philip Staniland 1907 1 - 0
Mark RA Murrell 1926 0 - 1
Paul R Barclay 1740 0 - 1
Huw D Jacob 1388 ½ - ½
Peter A Nickals 1659 1 - 0
David Smith 1620 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1640 = (10240 + 400 * (2 - 3)) / 6)

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