Event: S&D Knockout Championship

Opponent Rating Result
Glyn G Williams 108 ½ - ½
Glyn G Williams 108 1 - 0
Bernard Pratten 146 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

121 = (362 + 400 * (1 - 1)) / 3)

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