The below is an incomplete list of various match races (intentional and unintentional) to occur at Saratoga throughout the years.
08/05/1863: J. Morgan vs. Sympathy
07/27/1880: Luke Blackburn vs. Turfman
08/07/1903: Surmise vs. Himself
“Three of the five entries for the second race, a mile and a furlong handicap for all ages, were withdraw, leaving only Surmise and Himself to run. Surmise, with Bullman up, won easily, and there was considerable adverse comment because “Father Bill” Daly had allowed Himself to start, since the horse was in very poor condition.” (The Washington Post, 08/08/1903)
09/04/1920: Man o’ War vs. Hoodwink (Lawrence Realization Stakes)
08/02/1926: Golden Spire vs. Light Carbine (Mechanicsville Handicap)
08/29/1936: Discovery vs. Granville (Saratoga Cup)