Fowler continued to the final, defeating Kieran Smith in the round of 16, Nickson Otieno Abaka in the quarter-final, and Benny Muziyo in the semi-final, all by unanimous decision.

[4] Fowler fought Asian Games quarter-finalist Zhou Di[5] of the China Dragons in York Hall, Bethnal Green London, on 15 January 2015.

[8] Fowler competed at the 2016 Summer Olympics in Brazil but lost in his opening fight to Janibek Alimkhanuly of Kazakhstan by unanimous decision having suffered a knockdown in round two.

Fowler made his professional debut on 27 May 2017 at Bramall Lane in Sheffield, on the undercard of Kell Brook vs. Errol Spence Jr., scoring a first-round knockout (KO) over Arturs Geikins.

[19] Fowler along with other celebrities including, Paul Merson, Matt Le Tissier, and John Hartson have all been investigated and issued with a warning by the ASA.

The investigation also concluded that the posts made by these celebrities were making unlawful medical claims about the use of CBD, which is prohibited by the UK's Medicines & Healthcare products Regulatory Agency.