[1] Harding studied History at Durham University (Hatfield College).
[2] He initially 'slipped through the net' and was only assigned a place in the fourth team of the university rugby club, but soon climbed the ranks.
[2] Harding made his Premiership debut against London Irish in March 2021.
[4] He was named club captain for the upcoming Premiership season, taking over from Steven Luatua.
[3] In December 2024, he captained the side during their 0–38 home loss to Sale Sharks, their worst home defeat for eight years and the first time since September 2016 that they had not scored a point in a Premiership fixture.