What 1 and 1/2 mile race, also known as "test of the champion," did jockey Irad Ortiz JR win his first American Classic?
2016 Belmont Stakes:  The 1+1/2 mi race, known as the "test of the champion", is the final jewel in Thoroughbred horse racing's American Triple Crown series, and was held on June 11, 2016, three weeks after the Preakness Stakes and five weeks after the Kentucky Derby.
i don't know