Event: App Frod All Play All

Opponent Rating Result
Joe Kilshaw 0 0 - 1
John P Mainwaring 0 1 - 0
Joseph Madeo 0 0 - 1
Denis Georgiou 0 ½ - ½
Bernard Pratten 0 ½ - ½
Stan J Smart 0 ½ - ½
Rod S Wardlaw 0 ½ - ½
Glyn G Williams 0 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-50 = (0 + 400 * (1 - 2)) / 8)

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