He died as a result of a crash at a racing event in the Republic of Ireland.

[2] He also achieved numerous victories at two of Ireland's prestigious road racing events, the North West 200 (4) and the Ulster Grand Prix (7).

Dunlop campaigned a Kawasaki ZX-10R Superstock machine, provided by a different team, during selected rounds of the British Championship.

He led the race on time briefly during the first lap, but ran wide through the Graham Memorial corner on the mountain section on the third lap, running off the road up against the adjacent embankment, resulting in two fractures to his left leg.

[11] In the Supersport Class, Dunlop put in a very convincing performance on board the CD Racing Yamaha YZF-R6[11] and rounded the meeting off by taking victory in the Senior Open Race on the TAS BMW S1000RR.

[11] Dunlop sustained fatal head injuries as a result of a crash during practice for the 2018 Skerries 100 Road Races in County Dublin.

His Yamaha YZF-R1 bike spilled oil from the engine sump onto the back wheel, and as a result, Dunlop lost control and crashed into a ditch and trees at the Sam's Tunnel part of the circuit.