Takes 4/35 as Windies collapse to 140 all out in 18.4 overs.
Conway remains unbeaten on 47; Chapman hits two sixes to seal the win.
Duffy takes 10 wickets at 12.10 avg — first Kiwi with five 4-wicket hauls in T20Is.
Shai Hope: “We tried to attack but conditions didn’t suit us.”
Teams clash again in Christchurch for the ODI series starting Sunday.