Time is running out for the title challengers to step up. Kiwi internationals Cody Cooper and Scotty Columb have vice-like grips on two out of three championship classes as the New Zealand Motocross Championships head to Harrisville, near Pukekohe, on Sunday for the penultimate round.
Harrisville could certainly be the battleground that decides the war, with the four-round series ready to edge past the halfway mark.
Mount Maunganui's Cooper (Moto City Suzuki RM-Z450) is 20 points clear at the top of the MX1 class standings after the second of four rounds in this season's championship series at Patetonga, near Morrinsville, just over a week ago and it will now take a superhuman effort to knock him off the top spot.
Cooper has been single-handedly keeping the overseas invaders at bay as a trio of international stars - Scottish former Grand Prix rider Billy MacKenzie (JCR Yamaha Racing Yamaha YZ450F) and Australian pair Todd Waters and Kirk Gibbs (Both Motorex KTM) - nip at his rear wheel, but the invasion forces will need to fire up their big artillery on Sunday if they want to snatch the Kiwi silverware.
MacKenzie is second in the standings and the two Australians third and fourth, while in fifth position is the next best of the Kiwi contingent, former national motocross and supercross champion Daryl Hurley (Action Suzuki RM-Z450), of Hawera.