Well-ridden by Darren Gauci, Super Impose burst to the front in the home straight, and ‘had the race won’, according to Lee Freedman, but was run down close to home by his stablemate Tawrrific, who was carrying two kilograms less than Super Impose, and was ‘better equipped’ for two miles. Nonetheless, Freedman regarded the defeat as one of the horse’s greatest performances.
Entered a week later in Randwick’s Doncaster Handicap (over the much shorter distance of 1,600 metres), and carrying topweight of 57 kilograms, the change of plans failed to faze Super Impose, who produced a stunning finishing burst from the tail of the field to overhaul Shaftesbury Avenue over the closing stages. This stunning finish would become his trademark in the big Randwick ‘mile’ races over the next 18 months.
In a golden period, Super Impose won 10 of his 18 starts, and created history in becoming the only horse to win the AJC’s Epsom and Doncaster Handicaps two years in a row, in 1990 and 1991. Nonetheless, this period, which saw Super Impose win six of his eight Group One races, was not without sensation or controversy. Fresh from winning the 1990 Epsom Handicap with 58.5 kilograms, Super Impose was expected to provide the main resistance to Better Loosen Up in the spring carnival’s feature races, but bled in the Caulfield Stakes. Not only did the automatic three-month ban force him out of the Cox Plate, connections were unable to accept the Japan Racing Association’s invitation to run in the Japan Cup. Compounding the disappointment, Better Loosen Up went on to win both races, and took an unassailable lead in Horse-of-the-Year calculations.
Facing the prospect of a lifetime ban if he bled for a second time, Super Impose resumed in the New Year, and quickly won three races, including back-to-back wins for new jockey Darren Beadman in the Chipping Norton and Ranvet Stakes. Seemingly back to his best, Super Impose then shocked the racing world by finishing ‘stone-motherless’ last in the Mercedes Classic, some 15 lengths from the winner. In ‘Super Better Best’, then Chief Steward John Schreck explains that they had considered ordering Super Impose to barrier trial before being permitted to race again. Instead, their vets examined Super Impose in the week leading up to the Doncaster Handicap, and ‘Fortunately, everything went right’. Super Impose won the Doncaster Handicap for the second time, and set up his shot at history in the spring's Epsom Handicap.
‘He’s going to do it, it’s history at Randwick!’ cried veteran racecaller John Tapp as Super Impose swept to the front in his second Epsom Handicap. In winning each of those races for the second time, he also set modern-day weight-carrying records of 61 kilograms in the Epsom Handicap and 59.5 kilograms in the Doncaster Handicap. Only a small number of horses have carried bigger weights to victory in the 140-year history of the two races, and only Gunsynd, who carried the equivalent of 60.5 kilograms in the 1972 Doncaster Handicap, has carried more weight to victory in either race since 1960. Following these wins, Super Impose was named Australia’s greatest-ever ‘miler’ by racing author Warwick Hobson, and the club named a bar in his honour in the public grandstand at Royal Randwick.
‘Super’ showed glimpses of his best form in the New Year, including a rails-hugging win in the Chipping Norton Stakes, but his winning run came to an end in Randwick’s feature ‘miles’ when he finished sixth in the Doncaster Handicap under 62.5 kilograms and fourth in the spring’s Epsom Handicap under 61.5 kilograms.
Super Impose then broke an eight-race losing streak in the Canberra Cup, on his way to Melbourne for the Cox Plate of 1992. So easy was the win in that his jockey, Mick Dittman, slowed Super Impose to cantering pace approaching the finish line, more than three lengths clear of the runner-up.
The Cox Plate's capacity field of 14 consisted of Super Impose, the multiple Group One winners Let’s Elope, Better Loosen Up, Sydeston, Mannerism, Rough Habit, Naturalism, Kinjite, Slight Chance, Coronation Day, Prince Salieri, and Burst, the Group One winner Palace Reign, and the Group One placegetter Muirfield Village, and proved a race full of drama. Kinjite and Slight Chance alternated in the lead, with hot favourite Naturalism drifting toward midfield, and Let’s Elope, Better Loosen Up, and Super Impose near the rear. The pace was slow, and the field was tightly-packed entering the final 800 metres. Suddenly, Palace Reign clipped heels, and put Naturalism, Sydeston, and Rough Habit out of the race in a chain reaction, while the remainder of the field made for the home turn. Let’s Elope loomed up with ‘a mighty run out wide’, stalked by Super Impose, with Better Loosen Up in a pocket to the inside. In a thrilling finish, Better Loosen Up had to check when Let’s Elope rolled in, and Super Impose came at the leaders to Bryan Martin's memorable call of ‘Super! I think Super a nose to Let’s Elope in the Cox Plate’.
Super Impose finished his career with a fifteenth placing on an unsuitably wet track in Subzero’s Melbourne Cup, 10 days later, but fans simply displayed the reverse-side of their giant banner, which read ‘Bad luck Super. We still love you’. He was officially retired in February 1993.
Due to infirmities associated with old age, Super Impose was humanely euthanased in 2007 at the age of 22. He has been buried at Glenlogan Park Stud with a tribute stone and plaque erected in his memory.
In 2007, Super Impose was posthumously inducted into the Australian Racing Hall of Fame.