Hansen, who took over from Graham Henry after the All Blacks won the World Cup at home in 2011, has recorded 45 wins, two draws and three losses in his 50 games in charge, a winning record of 90%.
That is a top effort, although not the best.
That belongs to the late Fred Allen who was never beaten as an All Black coach from 1966 to 1968, playing 14 tests in that period.
Hansen (56) has coached the All Blacks the second-most number of times, behind Henry.
Hansen, who has a contract through to 2017, was also the head coach for Wales from 2002 to 2004 when his record was well below what he has racked up with the All Blacks.
With Wales, he coached the side 29 times for 10 wins and 19 losses, but his results with the All Blacks have been first-rate.
In 2013 he led the All Blacks to the first perfect season in the professional era as the team won all 14 games it played.
His sides have never suffered more than a single loss in a season.
The All Blacks lost to England in 2012, South Africa in 2014 and against Australia in 2015.
All the losses have been outside New Zealand.
The two draws have both been against Australia: the first in Brisbane in 2012, when the score ended 18-18, and in Sydney in 2014, when the scoreline was 12-12.
The All Blacks have not lost at home since 2009, when they went down to the Springboks at Hamilton, a run of 37 straight victories.
Henry was a coach who piloted the All Blacks for a record 103 tests with 88 victories, giving him a winning record of 85.4%. He won 44 of his first 50 tests.
The much maligned John Mitchell had a reasonable record. In his 28 tests in charge he racked up 23 wins, four losses and one draw.
John Hart, from 1996 to 1999 had a record of 41 games for 31 wins, nine losses and one draw.
Laurie Mains coached 34 tests for 23 wins, 10 losses and one draw from 1992 to 1995Overall, the All Blacks have played 531 tests, won 406, lost 106 and drawn 19, a winning record of 76.4%.
Incidentally, if the All Blacks make it to to the final, captain Richie McCaw will set a record for players appearing at the World Cup.
If McCaw, who is in his fourth World Cup, plays in all the remaining games possible he would play 23 games at the World Cup, beating the record of 22 set by prop Jason Leonard of England.
