Jack Samuel Bateson was born on 3 June 1994 in Leeds, England. He began boxing at the age of nine, explaining in an interview with Boxing Social, "I only started boxing when I were about nine because me older brother Tom packed up and I felt a bit sorry for me dad who coached him".[2] He had his first amateur fight at the age of 12[3] and remained unbeaten in 12 bouts before suffering his first defeat while representing England, saying on the loss, "Before I knew it, I were unbeaten in 12 and boxing for England against Ireland. I lost by a point and cried my eyes out. I never wanted to experience that pain again."[2]
He attended Allerton High School in Alwoodley, Leeds, achieving 10 GCSEs, before gaining a triple distinction in an Advanced Apprenticeship in Sporting Excellence course, eventually moving on to study for a foundation degree in Sports Coaching.[4]
Bateson made his professional debut on 1 September 2017, scoring a first-round technical knockout (TKO) victory over Zsolt Sarkozi at the Elland Road Banqueting Suite in Leeds.[6]
After compiling a record of 12–0 (3 KOs), it was announced in June 2020 that he had signed a management deal with MTK Global.[7]