Event: St Andrews Club Knockout Tournament

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Opponent	Rating	Result
Steve Donoghue	80	1 - 0
Thomas L Hackett	134	1 - 0(def)
Andrew D Bettley	153

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

480 = (80 + 400 * (1 - 0)) / 1)