Mammoliti took the win in the first race of the season, with superbike newcomer Adam Chambers taking second place and Cameron Stronach third.
Stronach was lucky to be racing after he seized his BMW at Friday�s tuning day but was loaned a Kawasaki for the day, which proved well for him when he won the second race ahead of Mammoliti and Anthony McFadden.
In the final race, Mammoliti again took the win over McFadden and Stronach.
Stronach sits second for the series on 61 points, McFadden is third on 55, Chambers fourth on 52 and Ben Stronach fifth on 50.
Chambers also has a perfect score to lead the B grade series, as does Alex Scaglioni to lead C grade.
In the supersport division, Thyron Van Vuuren took the chequered flag in the first two races (with the first race awarding half points because only five laps were run) with Livio Zampieri second in both and Leigh Boujos third. But in the final race, Zampieri took the win ahead of Van Vuuren and Boujos.
Van Vuuren leads with 57.5 points, with Zampieri on 55 and Boujos on 45.
He also leads the B grade series while Ray Tschorn leads C grade.
The sidecar championship was run over two races with Jero Joyce and Corey Blackman getting their season off to a great start with two wins and 50 points.
Though Darryn Walker and Juston Winchester took the other podium spots in the first race, the second race runners-up Graeme Evans and Eamon Mulholland are second for the series on 36 points and Des Harvey and Gary Cushnahan are third on 35.
Defending champion Scott Pettit dominated the 125GP with three wins for the day to finish on 75 points while Dave Doughty took two seconds and a third to give him 58 points and David Manson took two thirds and a second to sit on 56.
This was probably Pettit�s only ride in the class at state level for the year because he is set to ride a R1 for the remainder of the domestic season.
Round two will be held on June 21.