Qualified For First Major (World Masters)
Reached UK Open Last 32
Reached UK Open Last 16
Reached Players Championship Finals Last 32
Reached PDC World Championship Last 32
Reached World Grand Prix Final
First Player Ever To Hit A 9 Darter On TV With Double Start Format
Qualified for Grand Slam Of Darts
After two early exits in the 2003 and 2004 UK Open, Brendan's first major run came in the 2004 World Grand Prix where he qualified through the All Ireland qualifiers, winning one of four places. He defeated fellow qualifier Mark Wilton in the first round but lost in the second round to Kevin Painter.
Dolan reached the last 32 of the 2007 UK Open, beating Bob Anderson and Darren Johnson before losing to Dennis Priestley
In March 2008, Dolan reached his first PDC Pro Tour final, doing so in the UK Open Midlands Regional Final. He scored wins over Vincent van der Voort, Roland Scholten, Wes Newton, Colin Lloyd and Colin Osborne before losing to Phil Taylor. The result though earned Dolan £3,000, which helped him finish 16th in the UK Open rankings and enter the tournament from the third round. He defeated fellow Irish player John MaGowan in the third round and then beat Adrian Lewis to reach the last 16 where he lost to Chris Thompson.
Dolan won the 2008 Ulster Open, beating Ronnie Baxter in the final. He qualified for the 2008 World Grand Prix as one of the top 5 ranked Irish players in the PDC Order of Merit. He was beaten in the first round by Jacko Barry.
Dolan qualified for the 2009 PDC World Darts Championship, winning one of eight places at the qualifiers in Telford. He was beaten 3-0 by number 3 seed James Wade in the first round
In October 2009, Dolan reached his second PDC Pro Tour final in Nuland, where he lost 6-2 to Wade. He qualified for the 2010 PDC World Darts Championship via the Players Championship Order of Merit. Dolan defeated Tony Eccles 3-1 in the first round, but lost 0-4 in the second round to Raymond van Barneveld, who hit a nine-dart finish in the match.
At the 2011 PDC World Darts Championship, Dolan defeated Kevin Painter 3-0 in the first round before losing 0-4 to Wes Newton in the second round.
At the 2011 World Grand Prix, Dolan defeated Wayne Jones, John Part and John Henderson to become the first Irish player to qualify for the semi-finals of the event. In his semi-final against James Wade, Dolan became the first darts player to hit a nine-dart finish with the double-start rule on television. He hit 160 to start, followed by a 180 then followed this up with treble 20, treble 17, and then the bullseye. Dolan eventually won the match 5-2 to reach the final, where his run ended with a 6-3 loss to Phil Taylor.
Dolan did not enjoy a good 2012 World Championship as he lost 0-3 in the first round to Kim Huybrechts, picking up just two legs during the match. He then represented Northern Ireland with Michael Mansell in the 2012 PDC World Cup of Darts and together they reached the quarter-finals, where they were whitewashed by the Netherlands 0–4, having beaten Denmark in the second round