James Cluskey played mainly on the ATP Challenger Tour and the ITF Future Tour . So far, he has had twelve double victories on the Future Tour. On the Challenger Tour won two doubles tournaments, both in 2013, in Istanbul and in Guimarães . On September 17th, 2012 he broke through the top 200 in the world rankings in doubles for the first time and his highest ranking was a 145th place in September 2013.
James Cluskey played for the Irish Davis Cup team from 2006 . For this he competed in ten encounters, with a double balance of 1: 9.