Wallace's Year-Book of Trotting and Pacing in

Wallace's Year-Book of Trotting and Pacing originated in the late 19th century as an essential record-keeping project for the American trotting horse industry. It was established by John Hankins Wallace, the founder of the Wallace's American Trotting Register, to provide a definitive and standardized account of race results, pedigrees, and performance records. By codifying these statistics, the publication aimed to bring order and legitimacy to a sport that had previously suffered from fragmented and unreliable record-keeping.

The design and compilation of the Year-Book reflect a methodical, data-driven approach typical of Victorian-era industrial documentation. Produced under the auspices of the American Trotting Association, the volumes functioned as an authoritative reference tool for breeders, trainers, and owners. The series is highly regarded by equestrian historians for its granular detail, which successfully transitioned the sport into a professionalized field by establishing clear genealogical and performance-based standards that still inform the history of harness racing today.