New Zealand 318 for 6 (Conway 126, Mitchell 100*, Rubel 3-70) beat Bangladesh 154 (Mahmudullah 76*, Neesham 5-27, Henry 4-27) by 164 runs
Wellington: New Zealand cruised to a 164-run win in the third one-day international against Bangladesh in Wellington Friday to achieve a series clean sweep.
Maiden centuries for Devon Conway and Daryl Mitchell set up the win after New Zealand won the toss and elected to bat, making 318 for six.
Conway blasted 126 from 110 balls and Mitchell finished on 100 not out as Bangladesh's bowlers struggled on a green Basin Reserve wicket.
In contrast, Jimmy Neesham took five for 27 to mop up the Bangladesh tail.
Bangladesh were never in the hunt for the 319 target, and they were all out for 154 with Mahmudullah's unbeaten 76 the only highlight as eight batsmen failed to reach double figures.
The teams will met next in a three-match Twenty20 series opening in Hamilton on Sunday.
Paceman Rubel Hossain was the pick of the Bangladesh bowlers, with three for 70, but the tourists' attack struggled on a green Basin Reserve wicket.
Conway capitalised on the tourists' woes and his century was just reward for the South Africa-born batsman, who has been in outstanding form since he was first selected for the Blacks Caps late last year.
His performances include 72 in the second Bangladesh ODI and an unbeaten 99 when he was left stranded in a Twenty20 match against Australia last month.
Mitchell looked like he would suffer a similar fate in Wellington before scrambling home to bring up his century on the last ball of the innings as wicketkeeper Mushfiqur Rahim tried to stump him.
Both Conway and Mitchell were making only their third ODI appearances for New Zealand after debuting in the series opener against Bangladesh in Dunedin last week.
New Zealand were looking shaky before their arrival after losing three wickets within 13 balls to slump to 57 for three.
Tom Latham and Conway consolidated with a 63-run partnership before the New Zealand skipper departed for 18.
That was the cue for Conway and Mitchell to go on the attack, combining for a 159-run stand that put the match beyond Bangladesh's reach.
Openers Tamim Iqbal and Soumya Sarkar were dismissed in the first five overs and a steady stream of wickets prevented any meaningful partnerships forming.