Nkrumah Bonner's unbeaten 111 helped Sagicor High Performance Centre to complete a 3-0 whitewash over Bangladesh A in the one-day series in Barbados.
The hosts had won the first game by 117 runs and the second by three wickets.
Choosing to bat, the visitors were bowled out for 221 in 44.4 overs, losing their last six wickets for just 21 runs. Shuvagata Hom made 66 off 70 balls with seven fours while Nurul Hasan, promoted to open the innings, made 45.
Carlos Brathwaite and Jonathan Carter took three wickets each while Nikita Miller picked up two wickets.
In reply, Bonner led the charge for the home side with his third List A hundred. He shared 98 runs for the opening wicket with Andre Fletcher, after which he held on as three more wickets fell, before completing the win in, coincidentally, 44.4 overs.
Bangladesh A will play two T20s on June 14 and 15 before heading home.