Sherfane Rutherford reached his half-century in the last over of a dramatic run chase as West Indies completed a series-clinching five-wicket win with two deliveries to spare in the third Twenty20 international against Sri Lanka.
Rutherford was unbeaten on 54 from 40 deliveries and Jason Holder clubbed three sixes in the penultimate over, finishing 21 not out off five balls as West Indies reached 5-170 in reply to Sri Lanka's 169 on Sunday.
Two costly missed catches during Rutherford's innings hurt Sri Lanka's chances of taking the series after the first two games were split.
West Indies went into the deciding game with an attacking focus, deciding to bowl first after winning the toss.
Shamar Joseph (5-33) backed up the decision by snaring five wickets to contain Sri Lanka's innings in a player-of-the-match performance.