With Cape Town having elected to bat first, James Crowson gave the home side a rapid start with a boundary-studded 38 from 34 balls – his best score for the First XI to date.
William Hantam was the other half of a Cape Town opening stand that blazed 62 from the first ten overs, setting up the home side for an imposing final total.
Mathew Goles joined the party with a solid half-century of his own, helping William Hantam take Cape Town to 133-1 with 20 overs remaining.
William Hantam powered his way to 66 from 100 balls before being eventually run out, having struck a six and eleven fours along the way.
Brackenfell seamer Ettienne Jewell delivered a decent spell of 2-34 from his ten overs, as Cape Town briefly lost their way somewhat at the start of the final Powerplay.
A third consecutive fifty-plus score for Mathew Goles arrived in the 46th over, en route to a 90-ball knock of 65 that included two sixes and six fours.
Brackenfell opening bowler Jade Adams returned for his second spell in the closing overs to bag two scalps, but still conceded 31 from his last four overs as Cape Town finished strongly.
Bradley Petersen added the final touches to a powerful Cape Town total, hitting two late fours in a undefeated 20 from 15 balls.
With Brackenfell facing an already stern target, opening bowler Brendan Young destroyed any hopes of their mounting a challenge by blowing away their top order with four wickets in his first six overs, tumbling the visitors to 39-6.
Young’s new ball partner Darren Rolfe was the other half of a devastating Cape Town initial assault that ended the game as a contest less than 40 minutes into the Brackenfell reply, as he and Young both sent down eight-over opening spells to share the first seven wickets between them.
Left fighting a hopeless cause, Brackenfell number seven bat Ryno Marais launched a muscular counter-attack that included a six and five fours in his 22-ball 30 – but he too perished in the process.
Jade Adams further held up Cape Town’s victory celebrations for a while with a combative 25 from 31 balls.
As he had done earlier with the bat, Bradley Petersen again added the finishing touches for Cape Town with his left-arm spin, picking up two economical wickets at the death to wrap up the visitors’ innings.
Done and dusted as Cape Town complete a comprehensive 123-run bonus-point win over title hopefuls Brackenfell, moving themselves into the top half of the Premier League points table in the process.