The Jets big weekend began with a thumping win over the Cougars on Saturday, defeating last year's grand final rivals 64-46.
The 18-point defeat meant the Cougars were the only team without a win this year heading into the second half of the weekend double-header on Sunday.
Liz White's team bounced back to get on the winner's list however with a 62-55 defeat of the Brisbane South Wildcats at Nissan Arena.
The Wildcats are fourth on the ladder after the defeat, one of five teams with one win so far this season including the third-placed Gold Coast Titans who were the only team not to feature across the weekend's five matches.
A 65-42 thumping of the Carina Leagues Club Tigers on Sunday completed a perfect weekend for the Jets.
The pair of victories mean Paula Stewart's team top the standings with three wins from three games - two of those victories being against the four-time premiers Cougars.
Behind the Jets are the Sunshine Coast Thunder with three wins and one defeat from their four games.
Simone Nalatu's team suffered their first defeat of the season with a 58-50 loss on Saturday but recovered to post a six-point win over the Bond University Bull Sharks in a 78-72 shootout at USC Stadium with Sunshine Coast Lightning training partner Charlie Bell near unstoppable at goal shooter for the Thunder.
In a remarkable contest, Bond's Mia Stower shot 16 Super Shots from 19 attempts as the Bull Sharks tried to rein in a 15-goal three-quarter deficit but fell to a six-goal loss.
The HART Sapphire Series returns this weekend with a trio of games at Nissan Arena on Sunday.