Watch American Pharoah Race Secretariat in This Cool Split Screen

When American Pharoah pulled away from the herd at the 147th Belmont Stakes, he raced into history and became the first Triple Crown winner since 1978. But how did the thoroughbred's run stack up against the most famous racehorse of all time, Secretariat?

The Wall Street Journal put together this neat split screen comparing American Pharoah's Belmont win and the record-setting Secretariat's incredible 31-length victory in 1973:

[h/t: Deadspin]