Career
Walsh currently races a Mercedes-Benz E63 AMG for Erebus Motorsport in the V8 Supercars Championship. Walsh took up motor racing in 1999 by racing karts at the Ipswich Kart Club. Walsh was part of the CAMS Rising Stars program for 2007 when he was runner up in the 2007 Australian Formula Ford Championship whilst racing for Borland Racing Developments.
In 2008 Walsh competed in the Formula Renault 2.0 West European Cup (WEC) for Hitech Junior.
Walsh finished 4th in the 2010 Genuine Ford Parts Australian Formula Ford Championship. Walsh only competed in limited races in 2009, including the final two rounds of the Australian Formula Ford Championship.
In February 2011 he finished 16th in the 2011 Armor All Bathurst 12 Hour driving a Ryan McLeod run Herpes simplex virus VXR Turbo and then moved into the 2011 Fujitsu V8 Supercar Series with the newly expanded Miles Racing. Walsh is contesting the 2015 V8 Supercars Championship for Erebus Motorsport in a Mercedes-Benz E63 AMG (W212).