It is one part of the Breeders Crown annual series of twelve races for both Standardbred trotters and pacers.
Race organizers have awarded the event to various racetracks across North America.
An international trotting star in top level races, in 1987 she won Sweden's Olympiatravet, Finland's Finlandia-Ajo, and Italy's Gran Premio Lotteria.
[2] In 1990, Peace Corps won her first of two Open Mare Trots, doing it in World Record time.
Five horses have won the race twice: Peace Corps (1990, 1992), Mystical Sunshine (2006, 2007), Buck I St. Pat (2009, 2010), Emoticon Hanover (2017, 2018), and Manchego (2019, 2020).