Stewart Furze first competed in Australian Ninja Warrior 2.He would have a successful debut,being one of many rookies that tournament to clear the First Stage,with him clearing the course with over 20 seconds left.Stewart would be the first competitor shown to run the Second Stage,where he would ultimately lose his grip on the second Wingnut on Wingnuts.
Stewart would return for Australian Ninja Warrior 3 and would make it back to the Finals.This time however,he would fail Stage One in an all cut performance and his result would be unknown,though he made it to at least the Wingnuts on Stage One again.
Stewart would come back for Australian Ninja Warrior 4.He would make it back to the Finals once again,but did not compete due to COVID.
Stewart would return for Australian Ninja Warrior 5.This time,he would not make it to the Finals as he would fail Spinball Wizard in the semifinals.
Stewart would come back for Australian Ninja Warrior 6.He would make it to the Finals but failed early on Stage 1 at Eagle Claws.