When Henly was only 7 years old he developed a brain tumour which affected the right side of his body, including his vision. He has Right Hemi-paresis which falls under the category of cerebral palsy. He enjoys playing tennis and once said his greatest moment was beating the national No. 1 ranked ID tennis player. He works as an IT Administrator in Sydney. He lives in Sydney, NSW.
Sporting career
Henly wanted to pursue a career in tennis for athletes with a disability but was not eligible as only wheelchair tennis was supported at the Paralympic Games and he decided that wasn’t for him. He went to the Australian Paralympic Committee’s Toyota Talent Search Program where he was introduced to discus and shot put. Within 8 months he had competed in his first international event. He started competing in athletics in 2010. He was hoping to make the 2012 London Paralympic Games but narrowly missed out. At the 2011 Oceania Paralympic Championships in Darwin, Northern Territory he competed for Australia in discus and shot put. He received a gold in the Men's Discus Throw Ambulant event and a silver in the Men's Shot Put Ambulant event At the 2013 IPC Athletics World Championships in Lyon, France he again competed in both discus and shot put. He received a bronze medal in the discus and 8th place in the shot put Competing at the 2015 IPC Athletics World Championships in Doha, he threw the discus 53.41 m in final round to snatch the silver medal in the Men's Discus F37. After winning the silver medal, he said:"It was a bit of a fairy tale to improve on the bronze in the last round, but my coach just said to have a crack because there was nothing to lose. It's an improvement from a couple of years back, and now hopefully we move up to the gold in Rio to complete the medal set." At the 2016 Rio Paralympics, he finished fourth in the Men's Discus F37 with a throw of 51.97. At the 2017 World Para Athletics Championships in London, England, he won a silver medal in the Men's Discus F37 with a throw of 53.59. Henly at the 2019 World Para Athletics Championships in Dubai hurled the discus 51.43m to win the bronze medal - his fourth medal at his fourth world championships in a row.