Allen is a right-handed batsman who bowls right-arm off break. In 2006, Montserrat were invited to take part in the 2006 Stanford 20/20, whose matches held official Twenty20 status. Allen made a single appearance for Montserrat in their first-round match against Guyana, with their first-class opponents winning the match by 8 wickets.
He wasn"t required to bat in Montserrat"s total of 115/8, while during Guyana"s innings he wasn"t called upon to bowl.
As of 2009, he was playing minor matches for Montserrat.