Y-Chromosome Lineage Tracker

Thoroughbred Bloodlines

Every thoroughbred alive traces its male line to one of three stallions imported to England before 1730. Trace the unbroken Y-chromosome from any modern stallion back to the source.

↑ Darley Arabian Line
↑ Godolphin Arabian Line
↑ Byerley Turk Line
Search by stallion name
Top Stallions of All Time
LINEAGE PATH WILL APPEAR HERE
Three stallions. Every thoroughbred.
01
Darley Arabian
b. c. 1700 · Syria
~90% of male lines
02
Godolphin Arabian
b. c. 1724 · Tunisia/France
~5% of male lines
03
Byerley Turk
b. c. 1679 · Ottoman Empire
~5% of male lines