Waikato must digest an unwanted NPC record and the prospect of relegation from the Premiership division following a last-gasp loss to North Harbour in Hamilton.
Ben Volavola landed a penalty after fulltime to hand the third-placed visitors a 13-11 win, leaving them in contention to host a semi-final.
Waikato remain last, with a sixth successive loss the worst in the union's history since the provincial competition began in 1976.
A loss or draw against Bay of Plenty in Tauranga next week will see the Mooloo men relegated to the second tier for the first time since 1986.
If they win, they'll need sixth-placed Auckland to lose to Canterbury to remain in the top division.