2 articles
Hambletonian 10
Hambletonian 10 (Rysdyk's Hambletonian), 1849–1876, American trotting stallion and foundation sire of the Standardbred breed; sired over 1,300 foals, ancestor of nearly all modern Standardbreds.
Standardbred
Standardbred, American harness racing horse breed, trotters and pacers pulling a sulky; named for the 1879 2:30-mile registration standard, founded on Messenger and Hambletonian 10 (foaled 1849).