The list below shows the leading
sire of
racehorses in
North America for each year since 1830. This is determined by the amount of prizemoney won by the sire's progeny during the year. It is restricted to
stallions which are based in North America, but currently includes earnings from overseas races in
Great Britain,
Ireland,
France,
Italy,
Germany and the
United Arab Emirates as well as domestic earnings.
References
See also