Opener Smith anchored the innings with a 133-ball 107 run knock during which he struck 11 boundaries and a six, but it was Pollard's power hitting which stole the limelight and guided West Indies to 275 all out after being sent into bat.
West Indies then shot out Ireland for 231 in 49 overs with lanky left-arm spinner Sulieman Benn taking 4/53 and paceman and captain Darren Sammy chipping in with 3 for 31 at the PCA Stadium.
Ed Joyce (84) and Gary Wilson (61) kept Ireland in the reckoning with a 94-ball 91-run fourth-wicket partnership. But Joyce's dismissal in the 37th over changed the equation of the match as Ireland lost their last seven wickets for just 54 runs.
Image: West Indies' batsman Devon Smith reacts after scoring a century during a Cricket World Cup match between West Indies and Ireland in Mohali, India, Friday, March 11, 2011.