Rain and a wet outfield delayed the start of play on Day 4 at the Darren Sammy National Cricket Stadium in Gros Islet, St Lucia. When play resumed, West Indies took less than an hour to wrap up the match. They took nine overs to take the last four Bangladesh wickets. Kraigg Brathwaite and John Campbell then took a mere 17 balls to chase down the target of 13. Kyle Mayers was named Player of the Match for his two wickets and first-innings 146 as well as Player of the Series.
Bangladesh needed 42 to make West Indies bat again on Day 4. Their hopes rested on their last acknowledged pair of Nurul Hasan and Mehidy Hasan Miraz. Alzarri Joseph (3-57) broke through soon, with a bouncer that ricocheted off Mehidy's (4) bat on to the stumps. Nurul counterattacked, hitting eight fours and two sixes in his 50-ball 60, but there was no support at the other end. Neither of the his last three teammates – Ebadot Hossain, Shoriful Islam, Khaled Ahmed – managed a run as Jayden Seales (3-21) ran through the tail.
Bangladesh 234 (Litton Das 53; Alzarri Joseph 3-50) and 186 (Nurul Hasan 60*; Jayden Seales 3-21) lost to West Indies 408 (Kyle Mayers 146; Khaled Ahmed 5-106) and 13/0 (John Campbell 9*) by 10 wickets. Player of the Match: Kyle Mayers.
West Indies win the series 2-0. Player of the Series: Kyle Mayers.