Bangladesh 182 for 2 (Sarkar 87*, Tamim 43) beat Ireland 181 (Joyce 46, Niall O'Brien 30, Mustafizur 4-23) by eight wickets
Scorecard and ball-by-ball details
Mustafizur Rahman's spell accounted for the cream of Ireland's batting and helped Bangladesh cruise to their first win in the tri-nation series.
Ireland, sent in to bat, were bowled out for 181 in 46.3 overs with Mustafizur taking 4 for 23 off nine overs. Soumya Sarkar then struck his second successive half-century as Bangladesh cruised to victory by eight wickets in the 28th over.
Ireland's inability to convert starts - three batsmen made 25 or more but no one got to 50 - resulted in them losing wickets in clumps. They lost Paul Stirling in the first over, but recovered briefly: they were 60 for 2 in 14 overs when Andy Balbirne played all around a Shakib Al Hasan delivery and was lbw. In a nine-over spell courtesy spin, Ireland managed just 31.
The only resistance came when Ed Joyce, who top scored with 46, and Niall O'Brien put together 55 for the fourth wicket. Mustafizur returned to dismiss O'Brien to expose the lower-middle order with 22.3 overs still to play.
George Dockrell's 50-ball 25 lifted Ireland to 181 before Mashrafe Mortaza, the captain, brought the innings to a close. Mashrafe and Sunzamul Islam, the debutant left-arm spinner, finished with two wickets apiece.
Bangladesh's openers - Tamim Iqbal and Sarkar - started steadily, before they went into overdrive in the ninth over when Sarkar blasted Barry McCarthy for two fours and a six. Tamim, generally the aggressor, built gradually to make 47 before the O'Brien brothers combined to break a 95-run stand. Tamim, looking to run the ball down, could only get a faint nick through to the wicketkeeper.
Sabbir Rahman found his groove quickly, making an enterprising 35 that included three fours and a six, before falling with Bangladesh 10 short of victory. Sarkar was unbeaten on 87 at the finish.