The left-handed batsman, who has been going through a lean-patch in the tour, returned to form with a cracking 133-ball 147 to set up a daunting task for the home side.

In reply, Durham were struggling on 69-4 after 20 overs. Pacemen Syed Russel and Shahadat Hossain evenly shared the wickets.

Shahriar opened the innings with Mehrab Hossain Jr, who was promoted to the opening slot for the first time in the tour, after deciding to bat first. The move paid off handsomely as the two left-handers tore apart the Durham attack in a 209-run stand made in contrasting fashion.

Mehrab was happy to play second fiddle to his rampaging captain. The teenager made a patient 59 (123 balls) while Shahriar clobbered 20 fours and a six.

In a cameo innings, young Nazimuddin blasted three sixes and two fours in his hurricane 7-ball 28 while in-form Tushar Imran added 22 from 13 deliveries that featured four boundaries.

This was the last one-day fixture for the touring Bangladesh A. They have won only one game on the tour so far and that came in their last one-dayer against Lancashire.

The second string Bangladesh side will play two more three-day games before returning home.