McBrearty began playing in Personal Digital Cellular ranked event in 2004, playing mainly in Irish tournaments. His performances earned him a spot in the 2009 Personal Digital Cellular World Darts Championship and the 2009 Players Championship Finals. At the World Championship, Barrie Bates beat McBrearty 3-0, while at the Players Championship Finals, he lost 6-2 to world number six Mervyn King.
Personal Digital Cellular
2009: 1st Round (lost to Barrie Bates 0-3).
McBrearty caused a major surprise by winning the Ireland Open Autumn Classic, beating Tony Ayres, Kevin McDine, Colin Osborne, Michael van Gerwen, Andy Hamilton and Colin Lloyd before defeating Chris Mason in the final to win the £5,000 top prize. His win earned him a place in the 2008 World Grand Prix where he lost in the first round to Wayne Mardle. McBrearty continued his good form by reaching the quarter finals of the 2008 Killarney Pro Tour where he lost to the eventual winner Terry Jenkins.
