Pakistan remained the only unbeaten side at the ICC U/19 Cricket World Cup by beating Zimbabwe by nine wickets at the BKSP Sports Ground in Dhaka.

Pakistan overhauled Zimbabwe's modest total of 141 in only 30 overs to maintain the tournament's only 100 per cent record.

Pakistan bowlers Riaz Afridi and Mansoor Amjad were the top wicket-takers in the first round of the tournament with nine wickets apiece and they continued their good form against Zimbabwe.

After Pakistan put Zimbabwe into bat, the pace of Afridi accounted for two batsmen while Amjad's leg spin trapped three victims.

But as Zimbabwe slumped to 141 all out it was off-spinner Tariq Mahmood that caused the most damage. Mahmood finished his 10-over spell with 4 for 33, taking his personal tournament tally to 10 wickets.

The Pakistan reply was swift and effective and they lost only one wicket on their way to victory.

Captain Khalid Lateef lead the way with a domineering 84 not out that included 12 fours and a six while Abid Ali offered measured support with 43 not out.

Pakistan team manager Sultan Rana was impressed with the professional attitude of his players.

"I was very satisfied with today's performance which was a very good all-round team effort," said Rana.

"Our boys are performing well together and it was important to start the Super League with a win."

Zimbabwe captain Tinotenda Mawoyo was disappointed that his team had not adapted to the change of venue after three matches in Bogra.

"There was a different feeling in the dressing room today," said Mawoyo.

"The boys didn't seem up for it and we need to come back with a positive attitude for our remaining games in the Super League if we are to progress any further."