Ruling Thought is a thoroughbred horse born in Australia in 2020. Race horse Ruling Thought is by So You Think (NZ) out of Lagertha (AUS). Ruling Thought form is available here. Owned by Think Big Stud (Mgr: D G Ramage), A White, T W Mitchell, M J Byrnes, P J Beare, Mrs C Mitchell, Mrs S Byrnes, Done Up Racing (Mgr: Mrs S J Dunn) & A B Harmon.