Piquet is only four points behind Dutch teenager Verschoor and right in the title hunt as well. The Brazilian was third fastest in final practice when teams bolted new tyres onto the cars in an effort to establish the best setup for Saturday morning's qualifying.
It did not work out that way for Verschoor who was slower than what he achieved in the first session of the day.
"We made some changes to the car and I think we went in the wrong direction," said Verschoor, who was looking to return to the suspension and aerodynamic settings he had for that first session when he was fifth fastest.
"I would prefer to be one tenth of a second slower and be competitive, than trying to find the perfect set up," said Verschoor.
His take on the championship battle is quite simple. "I have to go for the wins," said Verschoor. "It's the only thing to go for to make up the points."
Grid positions will become all important for the trio of championship aspirants. Qualifying for Saturday afternoon's race and Sunday afternoon's Grand Prix is on Saturday morning, while the grid for Sunday morning's race is decided on the results from Saturday afternoon.
Apart from the three championship contenders, Marcus Armstrong from Christchurch will be looking to add to his winning tally after winning the main race at Taupo last weekend, while India's Jehan Daruvala will be wanting another victory like the opening round win in the Lady Wigram Trophy at Ruapuna. They were second and fourth fastest in final practice.
Final practice times
1, Thomas Randle (Australia) 62.416 seconds;
2, Marcus Armstrong (Christchurch) 62.517;
3, Pedro Piquet (Brazil) 62.690;
4, Jehan Daruvala (India) 62.778;
5, Keyvan Andres (USA) 62.785;
6, Thomas Neubauer (France) 62.929;
7, Christina Hahn (Brazil) 62.957;
8, Harry Hayek (Australia) 62.966;
9, Brendon Leitch (Invercargill) 62.987;
10, Ameya Vaidyanathan (India) 62.991;
13, Taylor Cockerton (Pukekohe) 63.030;
15, Richard Verschoor (Netherlands) 63.048.