Green Spaces is the exciting young stayer of the 2026 crop: winner of the ATC Derby over 2400m in the autumn and already marked as a Melbourne Cup horse of the future. Early markets have him at $16 for the Cup, with the Caulfield Cup his stated main spring aim — the classic Derby-winner path toward Flemington.
Australian Derby winners have a strong Cup pedigree, and lightly-raced four-year-olds arriving off Derby class with the weight-for-age scale tilting in their favour are the modern profile of a Cup winner. Waller holds all the spring aces, and Green Spaces looks the best credentialed of the stable's next generation.