Event: Rapid Play League

Opponent Rating Result
Peter F Mason 1750 ½ - ½
Peter F Mason 1750 1 - 0
Andy J Bagley 1948 ½ - ½
Andy J Bagley 1948 0 - 1
Paul A Johnson 1863 ½ - ½
Paul A Johnson 1863 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1854 = (11122 + 400 * (1 - 1)) / 6)

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