In 2003, Semper played club cricket in England for Harlow Cricket Club,[1] while in 2005 he played for Woodford Wells Cricket Club.[1] In 2006, Montserrat were invited to take part in the 2006 Stanford 20/20, whose matches held official Twenty20 status. Semper made his Twenty20 debut for Montserrat in their first-round match against Guyana,[2] with their first-class opponents winning the match by 8 wickets. Semper scored 7 runs with the bat, before he was dismissed by Andre Percival. In Guyana's innings, he took the wicket of Ramnaresh Sarwan to finish with figures of 1/22 from four overs.[3]
Following this appearance for Montserrat, he continued to play club cricket in England for Woodford Wells later in the 2006 English summer.[1] In January 2008, Montserrat were invited to part in the 2008 Stanford 20/20, where Semper made two further Twenty20 appearances, in a preliminary round match against the Turks and Caicos Islands and in a first round match against Nevis.[2] Against the Turks and Caicos Islands, he took the wicket of Errion Charles, finishing with figures of 2/10 from four overs. He wasn't required to bat in Montserrat's nine wicket victory.[4] Against Nevis, he bowled two expensive overs which conceded 30 runs without a wicket. In Montserrat's unsuccessful chase of 185, he top scored with 35, before being run out by Akito Willett.[5] In 2010, he played one club match in England for North Middlesex Cricket Club.[1]
