Jerome Taylor tore through Pakistan’s top order to set up West Indies’ first victory of the World Cup.
Taylor removed Nasir Jamshed, Younus Khan and Haris Sohail for ducks in the first three overs as Pakistan slipped to 1-4 – the worst start in ODI history – in pursuit of Windies’ 310-6.
Umar Akmal (59) and Sohaib Maqsood (50) salvaged some pride for Pakistan but the 1992 champions were bowled out for 160 in 39 overs to lose by 150 runs in Christchurch and suffer their second straight World Cup defeat
Denesh Ramdin (51) and Lendl Simmons (50) had earlier been two of a number of West Indies batsmen to contribute, though the Caribbean outfit did lose batsman Darren Bravo retired hurt with a hamstring injury.
West Indies made a slow start after losing the toss and being put into bat, with openers Chris Gayle (4) and Dwayne Smith (23) back in the shed with just 28 runs on the board.
However, every batsman below them chipped in, with Bravo (49) – who also required treatment after being hit on the head while running a single – and Marlon Samuels (38) rebuilding the innings before Ramdin and Simmons cut loose.
Ramdin clubbed seven fours in his innings and Simmons smoked four in his, while Andre Russell (42 off 13 balls) finished Windies’ knock with a flourish, bashing four sixes en route to putting on 51 with Simmons in the final three overs.
Russell’s big hitting handed the two-time champions the momentum and they did not relent when they came out to bowl, with Taylor and skipper Jason Holder leaving Pakistan’s scorecard in tatters.
Taylor’s swift three-for was backed up by Holder snaffling Ahmed Shehzad, ensuring Pakistan beat the previous worst start to an ODI, the 4-4 Canada were reduced to by Zimbabwe in 2006.
Russell removed opposition captain Misbah (7) to leave Pakistan 25-5 and while Masqood and Akmal, who shared a stand of 80 for the sixth wicket, as well as Shahid Afridi (28 off 26 balls) showed some fight, there was to be no recovery from the early capitulation.
Taylor finished with figures of 3-15, while Russell recorded 3-33 after also collecting the wickets of Akmal and Wahab Riaz, and recalled spinner Sulieman Benn, in for seamer Kemar Roach, snared two scalps.
Pakistan now sit rock bottom of Pool B following back-to-back defeats – they were knocked off by India in their opener – but West Indies have significantly boosted their chances of making the knockout stages after their reverse against Ireland first up.
Bravo, meanwhile, will remain with the West Indies side despite tearing his hamstring, though the team's media manager, Phil Spooner, says it is "highly unlikely" the batsman will be fit to face Zimbabwe on Tuesday.
Watch highlights of West Indies' win over Pakistan throughout the day on Sky Sports World Cup or with Hindi commentary on Zee Cinema (channel 790).