Career
Pemberton started his career at Alajuelense but made his league debut for Carmelita on 11 September 2004 against Pérez Zeledón when on loan from Liga. On June 15, 2012 he was awarded the prize for the best goalkeeper of the tournament delivered by Summer 2012 UNAFUT. In December 2013, he extended his contract with Alajuelense four more years. Pemberton made his debut for Costa Rica in a September 2010 friendly match against Jamaica and has, as of December 2014, earned a total of 24 caps, scoring no goals.
He was a non-playing squad member at the 2014.