Event: Club Knockout Tournament

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Opponent	Rating	Result
Wieslaw Stanicki	85	1 - 0
Tim F Woodward	145	1 - 0
Godfrey TM McCann	165	½ - ½

performance = (sum(opponents ratings) + 400(wins-losses)) / games

398 = (395 + 400 * (2 - 0)) / 3)