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Does anybody know how Arabs compare to Thoroughbreds in a 1 Mile race? I am assuming the TB has an advantage but does this advantage diminish with longer distance? What is the advantage? Is it conformation? Is it years of selected breeding?
Any opinions are appreciated.
TBs are about 15% faster than Arabians at the typical flat racing distances (700m to 2800mm). Anglo-Arabs (50/50) are about 7.5% faster than purebreds.
The advantages for the TB comes from over two centuries of breeding focused on one thing, racing. The Arabian has never been bred in large numbers across such a long time for racing.
If Arabian racing prospers over the coming generations and breeders focus on racing then I think one will see racing times drop. The TB horse is not becoming any faster as the structural support for speed in the bones, cartlidge and ligaments is not able to sustain more speed. Therefore one would expect the Arabian would gradually close the gap on the TB as the kings of speed.
In regard to distance; Arabians are already the kings of long distance racing. I don't think anyone knows at what distance the Arabian and TB are approximately equal. I would guess somewhere in the 10 miles (16 km) region as the TB advantage for speed begins to shift to the Arabians advanatage for endurance.