Natzke won the solitary SX2 race at Mt Smart on Saturday, finishing the night ahead of a hard-charging Latta and Ohaupo's always-consistent Carlin Hedley, which has boosted these riders' chances ahead of Saturday. Coppins chose not to race at Mt Smart and Taupō's Wyatt Chase also sat out the Auckland event.
In other classes, Christchurch's Marshall Phillips leads the Senior Lites class after Winton, Invercargill's Jack Symon heads the Junior Lites class, Rangiora's Korban Paget tops the junior 250cc class and Darfield's Tyler Wiremu rules the roost in the Junior 125cc class.
The popular Amisfield circuit, on the outskirts of Tokoroa, will host the final races this Saturday for all the various categories and anything is perhaps still possible with Supercross racing always a thrilling, edge-of-the-seat affair.
Motorcycling New Zealand Supercross commissioner Jim Cooper said he was really looking forward to the Tokoroa event.
"It's going to be another great one. Our fingers are crossed for good weather and I know everyone is excited about seeing this racing under lights at the North Island home of Supercross.
"It will be brilliant racing, with everyone fighting hard for titles."
2019 New Zealand Supercross Championships calendar:
Round one: Oreti Plains, Winton, November 9.
Round two: Mt Smart Stadium, Penrose, Auckland, November 16 (SX2 class only).
Round three: Moffat Road, Amisfield, Tokoroa, November 23.