In 1978, Nant won two stages of the Herald SunTour of Victoria in Australia.[3] The following year, he won the sprint ace title in the Tour of Southland.[4]
At the 2005 New Zealand national championships, Nant placed fourth in the veteran 4 / athletes with disabilities men's 70 km road race.[5] In 2009, he won the men's 55–59 division of the Yarrows Cycle Challenge in New Plymouth.[6]