West Indies Academy completed an innings and 134-run victory over Emerging Ireland on day three of their first four-day match at the Coolidge Cricket Ground in Antigua on Monday to go 1-0 up in the three-match series.
Emerging Ireland started day three 29-3, trailing the West Indies Academy by 167 runs.
They lost their final seven wickets for just 33 runs as the hosts secured victory by an innings and 134 runs.
Guyanese fast bowler Isai Thorne ripped through the Irish line-up on Monday with 4-8 from six overs and was well supported by Man-of-the-Match Joshua Bishop, who took 2-5 from 4.4 overs, and captain Nyeem Young, who grabbed 2-15 from two overs.
Thorne finished with match-figures of 8-41 on what was his First-Class debut.