Oldest horse ever

The greatest age reliably recorded for a horse is 62 years for Old Billy (foaled 1760), bred by Edward Robinson of Woolston, Lancashire, UK. Old Billy died on 27 November 1822.

Thoroughbred   The oldest recorded thoroughbred racehorse was the 42-year-old chestnut gelding Tango Duke (foaled 1935), owned by Carmen J. Koper of Barongarook, Victoria, Australia. The horse died on 25 January 1978.