The game sparkled early with a try each. Auckland's came against the early run of play by wing Ben Lam after his forwards squirrelled the ball away at a ruck, centre Malakai Fekitoa made strong ground and departing halfback Alby Matthewson kept it going; Canterbury's was by halfback Andy Ellis, finishing a terrific set piece effort from a scrum 70 metres away from the Auckland line, several hands ensuring the ball stayed alive.
By the time Ellis got his second, 12 minutes before the break, the reward for plenty of patience and an east-west probing approach waiting for a one-on-one mismatch - in this case hard-running second five-eighth Ryan Crotty on prop Charlie Faumuina - Canterbury were putting the squeeze on.
There was a growing relentlessness about their work in possession. No one was left to fend for themselves; the support play top class, they defended stoutly and long before the end there was no question who were the superior team. Tom Taylor kicked six from six, ensuring slipups would be punished.
Auckland were simply unable to put enough heat on Canterbury's defence in the second half, and ran out of ideas. Next it's Manawatu at Eden Park on Sunday. It's still early, but 'Must Win' leaps to mind.
Canterbury 33 (Andy Ellis 2, Willie Heinz tries; Tom Taylor 4 pen, 2 con, Tyler Bleyendaal con)
Auckland 11 (Ben Lam try; Gareth Anscombe 2 pen). HT: 20-11.