North Harbour sprung an ITM Cup surprise with a 29-24 victory over a previously unbeaten Canterbury outfit on Wednesday.
The hosts, rock-bottom of the Championship, caused the biggest shock of the season by beating the Premiership leaders.
Canterbury, winners of the tournament for the past six seasons, looked to be heading for a routine win when they raced into a 14-0 lead, Nathan Apa crossing inside 15 seconds and Codie Taylor also touching down.
But tries from Leigh Thompson's and Tevita Li, only the second of which was converted, meant the momentum was with North Harbour.
And they went into the break 19-14 ahead when James Parsons got in on the act.
A Matt McGahan penalty goal and Niko Ratumaikavuki's try sent the home side into dreamland, but they still had to survive a late scare.
Willi Heinz's converted touchdown reduced the arrears and Richie Mo'unga cut the gap to just five points, forcing North Harbour to hang on for a memorable triumph.