Hendry turned professional in 2005 and has played on the PGA Tour of Australasia, Japan Golf Tour and the OneAsia Tour.
On the OneAsia Tour, Hendry won the 2010 Indonesia Open. He finished third on the Order of Merit in 2010 and sixth in 2011. On the Australasian Tour, Hendry won the 2012 New Zealand PGA Pro-Am Championship. In 2012, he finished second on the Order of Merit.
In April 2015, Hendry won for the first time on the Japan Golf Tour at the Token Homemate Cup with a one-stroke victory.
In 2017, Hendry became the first New Zealander since Mahal Pearce in 2003 to win the New Zealand Open when he defeated fellow kiwi Ben Campbell and Australian Brad Kennedy in a playoff at Millbrook Resort. Hendry has an outstanding playing record in the Queenstown region having won the NZ PGA Championship on two occasions at the Hills.