Kusal Perera top-scored 111, while Angelo Mathews and Kusal Mendis added 43 and 48 helped Sri Lanka post 314 for eight against Bangladesh in Colombo on Friday (Jul 26).
Opted to bat after winning toss, the host started sold as Perera knocked 99 balls with 17 fours and a six to hit his fifth ODI century.
Dimuth Karunaratne and Lahiru Thirimanne, too scored 36 and 25 respectively helped the Lankans post competitive total at the R. Premadasa International Cricket Stadium.
Shafiul Islam was the pick of Bangladesh's blowers, claiming 3-62 as he and Mustafizur Rahman shared five wickets. Soumya Sarkar, Rubel Hossain, and Mehidy Hasan Mirza took one wicket apiece.