Challenging is a thoroughbred horse born in Australia in 2022. Race horse Challenging is by All Too Hard (AUS) out of Louis's Girl (AUS) , trained by Ciaron Maher. Challenging form is available here. Owned by A Kheir, Carty Racing, B J O'Brien, F Palazzo, T R Maddern, J A O'Neill, D J Meredith, B R C Racing, A K Racing , Cookie Racing & P Coffey.