 Later in 2002 Willis entered one race in the Supersport World Championship for the Dutch Saveko Racing team aboard a Yamaha YZF R6, finished 16th at Sugo.In 2006 he competed in four rounds of the Australian NakedBike Championship finishing 9th in the series on board a BMW K1200R.In 2007 Willis competed in the Australian NakedBike Championship riding a Benelli TNT 1130 Sport.