Leading sire in Great Britain and Ireland

The title of champion, or leading, sire of racehorses in Great Britain and Ireland is awarded to the stallion whose offspring have won the most prize money during the flat racing season. The current champion is Galileo, who won his fifth title in 2013, when his progeny won 162 races and £4,733,222.

All-time leading stallion (14 championships):

Excluding the foundation stallions, the following sire-lines have produced champion sires:

...
Wikipedia