After impressing with Harbour View FC Williams went on trial with Norwegian Division One side Mjøndalen IF during the 2010 season.
[2] In early March 2011 Williams continued to explore overseas options going on trial with Major League Soccer side Toronto FC.
[4] Two days later Williams made his debut for Toronto as a second half sub for Nana Attakora in a 1–1 home draw against Chivas USA.
On 20 June 2012 Williams made his return from injury as a second half sub for Danny Koevermans in a 3–3 away draw to Houston Dynamo.
[8] Dicoy Williams made his international debut for Jamaica on 12 August 2009 in a scoreless draw against Ecuador played at Giants Stadium.