Career
2009 Irish Amateur Boxing Association Best U21 2010 Commonwealth Games 6 October 2010 Qualification Bout 56 – defeated Joseph Mulema Cambodia 3–0 October 8 2010 1/8 Eliminations Bout 107 – defeated Suruz Bangali Bangladesh9–0 October 10 2010 Quarterfinals Bout 168 – defeated Mujandjae Kasuto Namibia 7–5 October 11 2010 Semifinals Bout 197 – defeated Dilbag Singh India 5–4 2011–2012 World Series of Boxing Gallagher boxed for the Mumbai Fighters during the 2011 WSB season. He finished up with a record of 1–1. Week 1 – defeated by Sergiy Derevyanchenko Ukraine TKO Week 4 – defeated Russell Lamour Haiti (48:47, 48:47, 47:48) Professional contract On 22 May 2012 Gallagher signed his professional contract with John Rooney, deciding to keep his base in Belfast.