It was held on June 19, 1867, at Jerome Park Racetrack in Fordham, Westchester County—now part of The Bronx.
In a field of four horses, the only filly that entered, Ruthless, won the inaugural event by a head over second place DeCourcey.
For winning, Ruthless's owners received $1,850.
[1][2] Ruthless was the first of only three fillies to win the Belmont Stakes.
The other two are Tanya (1905) and Rags to Riches (2007).