Born: 10 September 1959
Started training: 1987
Base: Kingsley House, Middleham
English Classic wins: 2
(1,000 and 2,000 Guineas)
2003 wins: 139
2002 wins: 134
2001 wins: 114
2000 wins: 121
A qualified vet, Johnston took out his training licence in 1987.
After a short spell in Lincolnshire, he moved to the famous Kingsley House stables in the historic northern racing centre of Middleham.
His operation there has grown and grown, as has his success rate - he surpassed the £2m prize money mark for the first time in 2002.
Johnston is ambitious and dedicated and his large string of horses are expected to share his work ethic.
The blunt Scotsman is a shrewd race-planner and will send his charges all over the globe if he believes they have a good chance of success.
And he is certainly getting himself known - he was included in the 2003 edition of Who's Who.
His two Classic success have come 10 years apart - the first was with Mister Baileys in the 2,000 Guineas in 1994, the second in 2004 when Attraction won the 1,000 Guineas.