Not even losing the first two days' play to rain could deny New Zealand a fifth consecutive Test series victory, as they beat Bangladesh in Wellington.
The Black Caps ensured they will remain the world's No 2 Test side at season's end after winning the second Test by an innings and 12 runs.
The home side wrapped up victory just before lunch on the fifth day, sealing the series with a game to spare - the third Test starts in Christchurch on Saturday.
New Zealand, missing injured pair Kane Williamson (pectoral) and BJ Watling (hamstring), dismissed Bangladesh for 209.
Neil Wagner finished with 5-45 to give him nine wickets for the match, while Trent Boult took 4-52.
The Black Caps had declared on 432-6, with Ross Taylor scoring 200 - his third Test double-century.
Captain Williamson scored 74 in New Zealand's innings then wasn't seen on the field again, but has avoided any serious shoulder damage.
He is in doubt for the final Test, as is Watling who was hurt while warming up on the fifth morning.
Coach Gary Stead said of Williamson: "Kane is obviously keen to play this final game, but we'll look to take a safety-first approach, particularly with the World Cup on the horizon."
The Black Caps had dismissed Bangladesh for 211 when play finally began on the third day of the Test, and then scored at better than five an over in their reply.
It put them in with a chance of claiming a fifth straight Test series - the run began with the West Indies in December 2017 - and they went into the final day needing seven more wickets.
Bangladesh added 32 more to their overnight total before Soumya Sarkar fell when Taylor took a catch at first slip off Boult.
Wagner took the next three wickets in consecutive overs and he claimed his fourth scalp when he had top-scorer Mahmudullah caught for 67.
Two balls later he bowled Ebadat Hossain to finish the match as Bangladesh continued their horror run in New Zealand - they have lost all 26 matches they've played in the country in all formats.
New Zealand are 10/1 to win the 2019 Cricket World Cup.
The Black Caps are 7/1 to win the 2020 Twenty20 World Cup.
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