Defending champions New Zealand have racked up the biggest points tally of the Rugby World Cup so far, running in 11 tries to hammer a spirited Namibia side 71-9 and charge back to the top of Pool B.

The bonus point was secured before half time and although there might be concern at yellow cards shown to Nepo Laulala and Ofa Tuungafasi for high tackles, the All Blacks look in ominous form heading into their last pool match against Italy.

Outstanding centre Anton Lienert-Brown, flying winger Sevu Reece and fullback Ben Smith all scored two tries and utility Jordie Barrett, starting at five eighth in a Test for the first time, also crossed and kicked eight conversions.

Namibia, who have never won a World Cup match in 22 attempts, opened the scoring and drew within one point at 10-9 after half an hour but bridging the huge gulf in class was beyond them and their physical challenge waned as they tired.