FABIO Martino was a “star” at Royal Randwick yesterday with a $1.2m cast-off. The young Hawkesbury trainer clinched an important milestone in his brief career; his first winner at headquarters when well-bred four-year-old All Star ($8.50) took the Midway Benchmark 72 Handicap (1800m). Given a great ride by Reece Jones, All Star ($8.50) dashed to the front in the straight and then held off $3.60 joint favorite Cabbucio. A son of I Am Invincible, All Star earned “millionaire st