1969: two-year-old season Nijinsky's first four races were all at the
Curragh. In June, he started at odds of
4/11 and won the six-
furlong Erne
maiden race easily. He followed up with wins in the
Anglesey Stakes and the
Railway Stakes. On his fourth appearance, he was extended for the first time in the
Beresford Stakes. He won decisively from Decies, a colt who went on to win the
Irish 2000 Guineas in 1970. Having proved himself the best of the Irish two-year-olds, he was sent to England in October to contest the
Dewhurst Stakes at
Newmarket. Ridden for the first time by
Lester Piggott, he was held up at the back of the six-horse field before moving through easily to take the lead inside the final furlong, earning top rating in the British Free Handicap.
1970: three-year-old season Spring On his first appearance as a three-year-old, Nijinsky beat the four-year-old Deep Run in the
Gladness Stakes at the Curragh in April. The colt was then sent back to Newmarket for the
2000 Guineas over one mile. He started the
4/7 favourite against thirteen opponents. Nijinsky took the lead two furlongs from the finish and, without being put under any pressure by Piggott, pulled clear to win by two and a half lengths from Yellow God. The second had won the Ascot 2,000 Guineas trial and the previous year's
Gimcrack Stakes, as well as finishing a close second in the
Middle Park Stakes.
Summer Nijinsky's opposition in the Derby at
Epsom was stronger and he started at odds of 11/8 – the only time he was ever odds against. His rivals were headed by the French-trained colts Stintino and Gyr. The veteran French trainer
Etienne Pollet had delayed his retirement for a year to guide Gyr, a son of his champion
Sea-Bird, through his three-year-old season. Nijinsky's time for the last two furlongs of the race (10.6 and 11.25 seconds, respectively) was of sprint championship-winning standard. Piggott claimed that he was "always cantering", while
Bill Williamson, who rode Gyr, said that "Nijinsky was just too good". Gyr subsequently franked the form by easily winning the
Grand Prix de Saint-Cloud. On the day before the Derby, Nijinsky had overcome a severe bout of colic which could have threatened his life. On 27 June, Nijinsky followed up his Epsom win by taking the Irish Derby at the Curragh. Ridden by
Liam Ward, he started at odds of 4/11 and accelerated late to win by three lengths from Meadowville. In July, Nijinsky raced against older horses in the
King George VI and Queen Elizabeth Stakes at
Ascot. His five opponents included winners of major races:
Blakeney (1969
Epsom Derby),
Karabas (
Washington, D.C. International Stakes), Crepellana (
Prix de Diane) and Caliban (
Coronation Cup). Without being extended, Nijinsky moved through to take the lead a furlong from the finish and won by two lengths from Blakeney despite being eased down to a
canter in the closing stages. In August, Nijinsky contracted
ringworm, which seriously affected his training schedule. The horse lost most of the hair on his body. and was sent to Doncaster for the
St. Leger in September. In the one mile and six furlongs race, he was attempting to become the first horse since
Bahram 35 years earlier to complete the English
Triple Crown. He started the 2/7 favourite and won comfortably, his margin of victory over Meadowville being one length. As of 2026, he is the last horse to accomplish the feat of sweeping the English Triple Crown: since 1970 only
Reference Point (1987),
Nashwan (1989),
Sea The Stars (2009) and
Camelot (2012) have won two of the three races. In his next race, Nijinsky was sent to France for the
Prix de l'Arc de Triomphe at
Longchamp in Paris in October. Having kept Nijinsky well to the rear, at least 10 lengths back, Piggott produced him in the straight but was baulked twice before making his run on the wide outside. However, 150m from the finish Nijinsky caught front runners Miss Dan and Sassafras and took a slight lead. In the last strides, Nijinsky appeared to veer left away from Piggott's whip and Sassafras, ridden by Yves Saint-Martin, produced a renewed effort to regain the advantage and win by a head. Many, including trainer Vincent O'Brien, felt that Piggott had lost ground on Nijinsky, drawn unfavourably on the wide outside, throughout the race, given the colt far too much ground to make up and left his challenge too late while all the while Sassafras had taken the shortest possible route. Piggott, who was heavily criticised by the media and racing public, said that in his opinion Nijinsky was past his peak for the year. It is beyond dispute that Nijinsky was a most unlucky loser. Piggott commented: "Certainly Nijinsky would have won had he not swerved almost in the shadow of the post, and certainly he would have won had his initial finishing run not been blocked on the final bend". Less than two weeks after his first, Nijinsky ran his last race in the
Champion Stakes over ten furlongs at Newmarket. Although he had been known to sweat freely before some of his previous races, Nijinsky on this occasion appeared to become particularly nervous and anxious before the start. In the race itself, he ran well below his best form and was beaten 3/4 length at odds of 4/11 by the five-year-old English horse Lorenzaccio. O'Brien on this occasion concurred with Piggott, saying that Nijinsky appeared to have "lost his fire." ==Assessment and honours==