American Donny Schatz was untouchable at WXC Speedway-Western Springs on Sunday night, as USA swept the overall series podium.
Rain on Saturday forced a 24-hour postponement of the meeting but did not stop five-time World of Outlaws sprintcar champion Schatz from putting on a driving master class, winning both heats and the feature.
"Once we got in the clear out front [of the feature] I just tried to drive smart and keep my tyres beneath me," said the North Dakota-based professional.
"The car just kept getting better as the race went on. It's great to get a win here in New Zealand. It was a fun race."
The track provided two distinct racing lines with half of the field nursing around the pole line on the bottom, while the other half, Schatz included, searched for traction right out wide near the wall.