Wellington, Jan 22(Agencies): New Zealand made an emphatic win over Pakistan as they crushed Pakistan by nine wickets in their first one-day international at Westpac Stadium.

New Zealand's opening combination of Jesse Ryder (55) and Martin Guptill (40 not out) made a mockery of the troubles Pakistan's batsmen had with the drop-in pitch as New Zealand raced to 125 for one in 17.2 overs.

Ryder and Guptill brought up the first 50 runs inside six overs and were then forced to take the scheduled tea break after New Zealand had earlier bowled the visitors out for 124 in 37.3 overs.

Tim Southee took a career-best 5-33, while wicketkeeper Brendon McCullum took five catches in an innings for the fourth time.

New Zealand coach John Wright had said before the match he wanted to trial some new batting combinations in the six-match series against Pakistan as they prepare for the World Cup, and that he would break up the normal opening combination of Ryder and McCullum and look at moving either down to the middle order.

McCullum, who has relinquished the gloves in Tests, was scheduled to come in at number six but he was not needed as Ryder and Guptill savaged the Pakistani bowlers.

Ryder scored 32 of New Zealand's first 50 runs with three fours and two sixes prior to the break and continued afterwards bringing up his fourth one-day half century off 31 balls before he was caught on the boundary by Asad Shafiq off Sohail Tanvir.

Ross Taylor was 23 not out with Guptill at the end of the game.

Pakistan, who had won the toss and opted to bat, never looked comfortable with New Zealand's pace bowlers getting good bounce, shape and movement away, causing them to prod at deliveries.

Test captain Misbah-ul-haq was again the mainstay of Pakistan's batting effort with 50, though the rest of the side failed to build any meaningful partnerships, with both Hamish Bennett and Jacob Oram flirting with hat-tricks.

Bennett finished with three for 26 and Oram two for 33. The next match is on Wednesday in Queenstown.