[4] Coyle made his professional debut on 18 September 2009, winning a six-round points decision against Kristian Laight.

On 6 October 2012, having won his first thirteen fights, Coyle lost a three-round unanimous decision to Gary Sykes in the quarter-finals of the Prizefighter lightweight tournament.

[9] After moving up to light-welterweight and scoring a points decision victory over Reynaldo Mora, Coyle challenged British champion Tyrone Nurse.

Coyle lost a closely contested unanimous decision despite knocking Nurse down in the seventh round.

[10] On June 1, 2019, Coyle fought Chris Algieri, ranked #5 by the WBO at super lightweight, on the Anthony Joshua vs Andy Ruiz Jr undercard.