Chaz Mostert scored a first win since 2019 to end his Symmons Plains weekend on a high in Race 8.
Earlier, Jamie Whincup scored a first win in nearly eight months with a strong drive in Race 7 at the Beaurepaires Tasmania SuperSprint.
In the morning, Cameron Waters laid down the gauntlet after clinching both Sunday poles.
Waters will start from P1 for both 44-lap sprints, with Race to commence at 4:25pm AEST.
On Saturday, Shane van Gisbergen clinched a record-equalling sixth straight win to start the 2021 season.
Earlier, van Gisbergen set a record pace to clinch the Race 6 pole ahead of Waters, and dominated the 44-lap race.
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