Waikato have scored just their second win of the New Zealand Football Championship season, beating Canterbury 1-nil in Ngaruawahia.
Che Bunce converted a penalty midway through the first half and Waikato then had to play the last 20 minutes with only 10-men.
Defending champions Auckland beat Wellington 3-1 in Auckland to move back to the top of the standings on goal difference.
So Auckland and Waitakere have 19 points, Auckland have played 2 games less, Otago have 13, Wellington 12, Canterbury 11, Manawatu 10, Hawke's Bay 8 and Waikato 6.