Theorizer is a thoroughbred horse born in Australia in 2018. Race horse Theorizer is by Exosphere (AUS) out of Galileo Gal (AUS) , trained by Darren Mcleod. Theorizer form is available here. Owned by D J McLeod, G J Mcleod, Mrs S J McLeod, S P Kenny, Mrs R Richardson, Ms E A O'Brien, Ms H Grantham, Mrs M T Kralj, Mrs S T Davison, Ms J Tracy, Miss D Nessling, Miss KA Wyatt, N Williams & P Williams.