Event: App Frod All Play All

Opponent Rating Result
Steven Ryal 0 1 - 0
Stan J Smart 1563 1 - 0
Glyn G Williams 1473 1 - 0
Maximiliano Cicuttini 0 1 - 0
Denis Georgiou 1863 1 - 0
Joanne Hutchinson 1735 0 - 1
Steven Lewis 1863 1 - 0
John P Mainwaring 1675 ½ - ½
Adam Nilsson 0
Bernard Pratten 1810 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1598 = (11982 + 400 * (7 - 1)) / 9)

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