Fresh from siring a Group II double at Randwick on Saturday with fast juveniles Tempted and Tentyris, Street Boss (USA) kept the ball rolling with another stakes-winner on Monday at Morphettville when four year-old mare Elphinstone landed the Listed SAJC Colin Hayes Memorial Cup (1600m).

Classy juvenile Landlock turned a few heads when pushing million-dollar colt Return to Conquer right down to the wire in Saturday’s Gr.1 Sistema Stakes (1200m), but the performance came as no surprise to his trainer Cody Cole.