[2] He turned professional on 21 March 2015, at the Future Stars League event in Harrow, England.
[5] On 9 December 2017 Sugden was scheduled to face Zhang Chenglong at Glory 49: Rotterdam.
[7] Sugden faced Zakaria Zouggary at Glory 52: Los Angeles on 31 March 2018.
[8] On 28 September 2019 Sugden faced Asa Ten Pow at Glory 68: Miami.
[11] On 18 March 2022 Sugden faced Ibrahim Madi from France for the vacant ISKA K-1 World 63.5 kg title in Grantham, England.