 He wasn't an outstanding youngster, even with his wins in the Champagne, the Remsen Stakes, the Autumn Days Stakes, and the Islip Handicap, but at three he came into his own.In 1921, Grey Lag won the Belmont Stakes with Earl Sande up (this was the year after Man o' War's win and two years after Sir Barton's), the Dwyer Stakes, the Empire Derby, the Knickerbocker Handicap, the Devonshire International Handicap, and the Mount Kisco Stakes.He placed in the Lawrence Realization Stakes, Brooklyn Handicap, Queens County Handicap, Empire City Handicap, Saratoga Handicap, Kings County Handicap, Excelsior Handicap, Metropolitan Handicap, Suburban Handicap, and Jockey Club Gold Cup.