Stonham attended Felsted School in Essex – the same school as future teammate and fellow Saracens academy graduate Max Malins – but did not play junior club rugby. He was a keen hockey player as a youngster and represented England at junior level, while rugby was his second sport. However, he gradually focused more on rugby, becoming the captain of his school's first team, before joining the Saracens academy.[2]
Rugby career
Stonham was recruited into the Saracens junior academy at the age of 16, and later graduated into the senior academy in June 2019.[1] He made his Premiership debut in December that year, in a victory over Worcester.[2] Subsequently, he featured in the Premiership Rugby Cup, whilst also spending time out on loan with Ampthill in the Championship.[3] Prior to the 2022–23 season, Stonham was promoted into the Saracens first-team squad.[4]