Two weeks after the Derby, Tetratema was brought back to sprinting at Royal Ascot and won the Fern Hill Stakes by six lengths from the two-year-old Galway Castle. When tested over ten furlongs in the Eclipse Stakes however, he again failed to stay and finished unplaced behind the four-year-old Buchan, who won from Silvern and Allenby.
Two weeks after the Derby, Tetratema was returned to sprinting at Royal Ascot and emerged victorious in the Fern Hill Stakes by a significant margin from the two-year-old Galway Castle. However, when tested over ten furlongs in the Eclipse Stakes, he again failed to maintain his pace and finished without a placing behind the four-year-old Buchan, who outperformed Silvern and Allenby.