Dilmaghani made his professional debut on 23 April 2009, scoring a four-round points decision (PTS) victory against Baz Carey at the Troxy in London.
[3][4] He scored another four victories, one by stoppage, before suffering the first defeat of his career against Mickey Coveney on 18 June 2011, losing via PTS over four rounds at the York Hall in London.
After fighting abroad for several years, Dilmaghani signed with Mick Hennessy and made his ring return to the United Kingdom on 25 May 2019 winning via technical knockout (TKO) in round 8 against Martin Parlagi at the Victoria Warehouse in Manchester.
The bout was originally scheduled to take place on 28 September 2019,[9] but on the night Fonseca fell ill before walking to the ring, forcing promoter Mick Hennessey to cancel the main event at the last minute.
[12] Following the draw with Fonseca, Dilmaghani challenged European super-featherweight champion Samir Ziani on 5 September 2020 at the Production Park Studios in South Kirkby.
His success continued for much of the fourth, with Ziani coming on strong at the end of the round, landing a left hook as the bell rang.