Of the 937 sires which were assigned APEX ratings at the end of 2013 (meaning they had 10 or more 3-year-olds in 2013), there are 501 sires which stand or stood in North America or ‘Europe’ (England, Ireland, France, or Germany) and which had 200 or more year-starters (denoted ‘runners’, though in this case a horse is counted as one runner each year it races) from 2007 to 2013.

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