Seven West Indies wickets fell to spin bowlers, including the first four of the innings.
Mitchell Santner, who was Man of the Match for his 3-19 in the first match, took a wicket with his first ball and two wickets in his opening over to set back the West Indies’ run chase.
Off spinner Michael Bracewell, who replaced fast bowler Lockie Ferguson in the New Zealand lineup, also took a wicket with his first delivery, dismissing captain Nicholas Pooran (1) as the West Indies slumped to 12-3 at the start of the fourth over.
Santner and Bracewell both finished with 3-15 while Ish Sodhi took 1-36. Tim Southee took the only wicket which fell to a fast bowler, removing Odean Smith at the tail and returning 1-34.
Shimron Hetmeyer was the first batsman not to fall to a spin bowler, run out by a direct hit at the bowlers end by New Zealand captain Kane Williamson. The West Indies were 28-5 at that point and couldn’t recover.
“We just didn’t show up today,” Pooran said. “They batted us out of it and we couldn’t see our way with the bat. We had to stay in the game. It just didn’t start well for us. We are struggling but the more cricket we play our performance will grow.”
The final T20 will be played on Sunday at the same venue, followed by three one-day internationals.