The start of the 2017 Rugby Championship saw Hansen lead the All Blacks to a comprehensive win over Australia, 54–34 in Sydney. At one point, the All Blacks led the Wallabies 54–6, but conceded four tries in the last thirty minutes of the game. In the second round, New Zealand came from behind (17–0) to see out another victory over Australia 35–29. It was not until the 78th minute however that the game was secure, with Australia leading 29–28 heading into the final minutes of the game. In round three, Hansen made significant changes to his team against Argentina, but despite this, New Zealand still saw out the victory 39–22, even though they were behind at half time. In the fourth round, Hansen brought back his main players for their home game against South Africa. They helped New Zealand to an historic victory, beating South Africa 57–0 in what was their largest ever defeat. Leading into round 5, New Zealand had already secured their fifth Championship title, and wins over Argentina and South Africa away, meant the All Blacks ended the Championship with six out of six wins.