 He has also competed in Indy Lights in the USA and Formula Holden in Australia.Booth won the Tasman Series (Formula Holden) in 2000, driving for the NRC International team, also taking the New Zealand Grand Prix and Denny Hulme Memorial Trophy in the same year.Booth then briefly competed in Indy Lights in the USA,

Since 2001 he has been competing in the NZ V8s exclusively, winning the series in 03/04 and 04/05, and consistently placing in the top 6.