[6] As a yearling the colt was sent to the St Leger Sale at Doncaster in September 1999 and was bought for 36,000 guineas by Will Edmeades, a bloodstock agent whose other purchases have included Sir Percy and Presvis.
[3] Candy had enjoyed great success with middle-distance performers such as Time Charter and Master Willie in the 1980s but had struggled for winners in the 1990s before re-emerging as a trainer of sprinters.
Ridden as in most of his early races by Chris Rutter, he recovered from being hampered at halfway to take the lead in the final furlong and won by a neck from Attorney.
[9] The colt then started 11/8 favourite for a minor race on heavy ground at Beverley Racecourse but was overtaken in the closing stages and beaten two and a half lengths by the filly My Lovely.
On his third and final appearance of the season the colt carried top weight of 133 pounds in nursery handicap at Sandown Park Racecourse on 30 September.
Ridden by Kieren Fallon, he was held up at the rear of the fourteen runner field and struggled to obtain a clear run in the last quarter mile.
[10] After a break of three months, the colt was moved up in class and sent to France for the Listed Prix du Cercle at Deauville Racecourse on 2 August and finished second to the French-trained Do The Honours.
The colt began his third season in a handicap at Newbury Racecourse in April and won by one and three quarter lengths after accelerating into the lead inside the final furlong.
[11] On 4 May, Kyllachy was moved up to Group Three class for the first time and started the 2/1 favourite for the Palace House Stakes over five furlongs on good to firm ground at Newmarket.
Smokin Beau, Bahamian Pirate and Continent were again opposition whilst the other contenders included Kier Park (Cornwallis Stakes) and Vision of Night (Goldene Peitsche).
Kyllachy moved into Group One class for the first time in the Nunthorpe Stakes over five furlongs at York Racecourse on 22 August and started the 3/1 favourite against sixteen opponents.
Although he recovered soundness there was not enough time for him to be trained to full fitness for the Prix de l'Abbaye and his retirement was announced at the end of September.