[1] Originally from Brighton and Hove in East Sussex, Hadfield attended the University of Bath between 2017 and 2021, and represented their rugby union team while studying for a degree in health and exercise science.
[4] Following graduation from university, Hadfield signed with RFU Championship club Richmond for the 2021–22 season, before transferring to league rivals Jersey Reds a year later.
[6] On 29 September 2023, Hadfield was made redundant, along with the rest of the Jersey Reds playing squad and staff, after the club ceased trading and went into administration.
[7] However, a week later, he found a new club, signing for reigning Premiership champions Saracens – initially on a short-term deal, which was later extended until the end of the 2023–24 season.
[10] In the 2024–25 season, Hadfield notably equalled the English top-flight record for most tries scored in a single match, when he crossed the whitewash 6 times for Saracens, during their 99–27 win over London Scottish in the Premiership Rugby Cup.