In the 125cc class, McGoldrick is coming under intense pressure from Bay of Plenty trio Cameron Vaughan (Rotorua), Logan Blackburn, (Tauranga), and Rotorua's's Cameron Negus, and he'll need to be at his best on Sunday to fend off the challengers.
These riders will also be well aware of the threat posed by riders flying just under the radar, Tauranga's Peter Broxholme, Mount Maunganui's Rhys Carter, Waitakere's Ethan Martens, Wellington's Jayden Jessup, Nelson's Nathan Clare, Auckland's Callan May and Te Awamutu's Ryan Thompson.
There will also be racing this weekend for the MX3 riders, a support class for non-qualifiers.
The circuit at Harrisville has recently undergone a major revamp with expatriate Kiwi Greg Atkins, who directs the motocross world championship organisers on track design in Europe, at home for a "holiday", spending hours with a bulldozer in recent weeks the Pukekohe turf.
After Pukekohe this weekend, the series heads to Taupo in a fortnight for a thrilling final-round climax.