[7] He defeated fellow countryman John MaGowan in the third round and then beat Adrian Lewis to reach the last 16 where he lost to Chris Thompson.

[9] He qualified for the 2008 World Grand Prix as the highest ranked player from Northern Ireland in the PDC Order of Merit and was beaten in the first round by Jacko Barry.

[12] In October, he reached his second PDC Pro Tour final in Nuland, where Wade fought back from 2–0 down to defeat Dolan 6–2.

[18] He then represented Northern Ireland with Michael Mansell in the World Cup and together they reached the quarter-finals, where they were whitewashed by the Netherlands 0–4, having beaten Denmark in the second round.

[21] At the European Championship Dolan beat Justin Pipe and Andree Welge to set up a quarter-final meeting with Phil Taylor, who had never lost a match in the event.

[22] Dolan became the first man in 23 attempts to defeat Taylor in the tournament with a 10–6 win, at the same time breaking his own duck against the fifteen-time world champion after 14 previous losses.

[28] After all 33 ProTour events of 2012 had been played, Dolan was 21st on the Order of Merit, comfortably inside the top 32 who qualified for the Players Championship Finals.

[33] Dolan reached the final of the second UK Open Qualifier following wins over the likes of Dave Chisnall, Ronnie Baxter and van Barneveld.

[36] In October, Dolan came close to winning his first ranking tournament as he led Adrian Lewis 3–0 in the final of the ninth Players Championship, but went on to lose 6–4.

[37] Dolan faced Lewis again a few days later in the first round of the World Grand Prix and lost in the deciding leg of the final set.

He took advantage of a depleted field due to the top 16 on the Order of Merit all participating in the Masters to defeat world number 110 Ricky Evans 6–3 in the final.

[43] A favourable draw saw Dolan beat Steve Beaton, Nigel Heydon and Aden Kirk to reach the quarter-finals of the UK Open for the first time, where he lost 10–4 to Terry Jenkins.

[44] His second title of the season and fourth in sixth months came at the fifth Players Championship where he averaged 103.66 in whitewashing Michael Smith 6–0 in the final.

[45] In June, Dolan and Mansell beat Peter Wright and Robert Thornton from Scotland in the quarter-finals of the World Cup.

[46] Dolan won the 16th Players Championship with a 6–2 victory over Anderson at the Citywest Hotel in Dublin, the same venue where he reached the final and threw a nine-dart finish in the 2011 World Grand Prix.

[49] Dolan earned a spot in the Grand Slam through the qualifier, but lost each of his group games against Wright, Simon Whitlock and Michael Smith to finish bottom of the table.

[57] Dolan partnered Daryl Gurney at the World Cup for the first time and they defeated Japan, Ireland and Canada to reach the semi-finals, where they lost both their singles matches against the English pairing of Phil Taylor and Adrian Lewis.

[59] Before the World Grand Prix Dolan married his partner Teresa and then defeated Peter Wright 2–0 in the first round, but was then eliminated 3–1 by Dave Chisnall.

[60] Dolan recorded victories over Max Hopp and Martin Adams to qualify from his group at the Grand Slam behind Michael van Gerwen.

[63] Dolan's quest to get past the second round of the World Championship continued as he lost at that stage in the 2017 tournament 4–0 to Jelle Klaasen.

An uptick in Pro Tour form saw him qualify for the 2018 Players Championship Finals, where he caused an upset by beating #1 seed Ian White in the second round before going out to his World Cup partner Daryl Gurney.

Dolan qualified for the 2019 PDC World Darts Championship through the Pro Tour Order of Merit, and went on to have his best run at the event yet, winning in straight sets against Yuanjun Liu and Joe Cullen, then took out seeds Mervyn King and Benito van de Pas, before losing 1–5 to a rampant Nathan Aspinall in the quarter-finals.

He managed to defeat Adrian Gray, Niels Zonneveld, Ciaran Teehan, Dave Chisnall, Derk Telnekes and James Wade.