Opener Tanzid Hasan struck 94 runs as Bangladesh trounced hosts Zimbabwe by seven wickets on Saturday in a dead rubber one-day international in Harare.
Zimbabwe had clinched a winning 2-0 lead in the three-game series two days ago with a 13-run victory after taking the opener by 25 runs.
The tourists won the toss and bowled Zimbabwe for 199 with Wessly Madhevere (75) and Brad Evans (50) the only batters delivering significant knocks.
Bangladesh then reached 200-3 with 84 balls to spare. They now switch their focus to a three-match Twenty20 series in Bulawayo, starting on Wednesday. Before the ODIs, they lost a one-off Test.
Player of the match Tanzid said: "I am happy because the wicket was good. When I went to the wicket, the ball came on nicely. In the previous wickets, there was a little bit more bounce."
Madhevere fell when his top edge was held by Mehidy Hasan Miraz in the covers. Evans was also punished for a top edge, caught by Tanvir Islam at fine leg.
Quick Shoriful Islam (4-44) was the pick of the Bangladeshi bowlers. His victims included opener Ben Curran (2), a centurion in the second ODI.
After failing in the previous ODIs when chasing a win, Bangladesh made no mistake at the third attempt as Tanzid and Soumya Sarkar (69) put on 151 runs for the opening wicket.
Zimbabwe used seven bowlers without success until Sarkar was bowled by Tanaka Chivanga in the 28th over.
Tanzid fell just six runs short of a second ODI century, caught by Evans at long on. His knock included three sixes and eight fours off 101 deliveries.
Brief scores
Zimbabwe 199 in 48.1 overs (W. Madhevere 75, B. Evans 50; Shoriful Islam 4-44) v Bangladesh 200-3 in 36 overs (Tanzid Hasan 94, Soumya Sarkar 69)
Reseult: Bangladesh won by seven wickets
Series: Zimbabwe won 2-1
Also Read: Live Cricket Score
Toss: Bangladesh