[1] At the 2012 Summer Paralympics he was part of the Australian men's wheelchair team that won silver.
[9] Hartnett was part of the 2006 national squad that won silver at the FESPIC Games.
[3] He was also part of the 2007 squad that competed at the Paralympic World Cup that won a silver medal.
[3] That year, he also competed as part of the national team at the Great Britain Series.
His Perth Wheelcats lost to the Wollongong Roller Hawks in the 2011 NWBL Championship.