Event: Armstrong Cup

Opponent Rating Result
Andrew Perella 1659 ½ - ½
Peter J Combellack 1341 1 - 0
J Dave H Hair 1723 1 - 0
Steve Burnell 1827 ½ - ½
Dave Jarema 1783 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1907 = (8333 + 400 * (3 - 0)) / 5)

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