45² = 2025. Exactly one perfect square ago – 44² = 1936 – a small grey colt named Mahmoud crossed the Epsom Derby finish line in a time of 2:33.8, a record that would stand for an astonishing 59 years until Lammtarra in 1995. Initially dismissed for his size and colour in an era when grey horses were viewed with scepticism, Mahmoud would reshape thoroughbred breeding across generations.
This image captures him after that historic run, his distinctive white face bright against his grey coat, Charlie Smirke still in the saddle and the Aga Khan beaming beside them. What isn’t visible in the frame is the meticulous preparation behind this moment – Lt Col Vuillier’s systematic approach to pedigree matching had helped shape the decisions that led to this Derby champion.
In 1936, few could have predicted that this “third string” runner would become one of the most influential sires in American breeding history, leading both the sire list (1946) and broodmare sire list (1957). Through daughters like Almahmoud – who would produce both Natalma (dam of Northern Dancer) and Cosmah (dam of Halo) – he became the foundation of bloodlines that would shape the modern thoroughbred.
The tools and technologies of 2025 represent a quantum leap in thoroughbred analysis. Modern data science, powered by advanced computing, now has the capability to process millions of pedigree combinations and performance features, and quantify the complex interactions that define excellence across generations.
From one perfect square to another, the evolution of thoroughbred analysis continues. What was once artistry is now science.
Photo credit: Times of India
