West Indies 108 for 3 (Gayle 50, Pooran 34*, Amir 3-26) beat Pakistan 105 (Thomas 4-27, Holder 3-42) by seven wickets
Nottingham: West Indies produced a blistering bowling display to crush Pakistan by seven wickets and begin their World Cup campaign with an emphatic victory at Trent Bridge.
The two-time champions bowled Pakistan out for just 105 in 21.4 overs - their second lowest total in World Cup history.
All 10 wickets fell to seam with the West Indies bowlers quick and hostile in front of a crowd vociferously in support of Pakistan in Nottingham.
Oshane Thomas took 4-27, captain Jason Holder 3-42 and Andre Russell a brilliant 2-4 in three overs as only two Pakistan batsmen passed 20.
Chris Gayle smashed 50 from 34 balls with six sixes to give West Indies' chase a quick start and, despite three wickets for Mohammad Amir, the win was sealed with 36.1 overs remaining when Nicholas Pooran smashed a huge six.
The bowling performance only strengthens the view that West Indies could be serious contenders to win their first 50-over World Cup since 1979, while it is a miserable start for Pakistan who won the Champions Trophy in England just two years ago.