Thompson played in the final of the 2005
Donegal Senior Football Championship (SFC), as Naomh Conaill won its first ever title (after a
replay). His club also won the
2010 Donegal SFC final, and went on to reach the final of the 2010
Ulster Senior Club Football Championship, knocking out Cavan champions
Kingscourt, Monaghan champions
Clontibret and Tyrone champions
Coalisland along the way. He then played for his club in the final of the
2015 Donegal Senior Football Championship. His club won. After the 2005 Donegal SFC title win, Thompson was called into the Donegal senior team by manager
Brian McIver. Thompson is a veteran of Donegal's
2007 National Football League-winning campaign. He maintained his place with the team for their
2014 Ulster Senior Football Championship and the year's All-Ireland SFC final. ==Honours==