Mark Johnston (racehorse trainer)
He attended Glasgow University and is a qualified vet. He started training at a stable near Louth, Lincolnshire in 1987, and his first winner was Hinari Video at Carlisle.  He has been training in Middleham since 1988 when he purchased Kingsley House (often falsely attributed to be the former home of Charles Kingsley, author of The Water Babies).
In 2004 he won the 1,000 Guineas with Attraction. Other successful horses he has trained are Mister Baileys, winner of the 2,000 Guineas, Shamardal, 2004 European Champion Two-Year-Old, and Double Trigger, winner of the Ascot Gold Cup.
Johnston's horses are known for their front running style and bravery in a finish, two attributes that were best advertised by the exploits of Attraction. He cites Shamardal as the best horse he ever trained, and Attraction as the one he is most proud of.
The motto of the stable is "Always Trying".
He is married to Deirdre, a former teacher. 
- 1,000 Guineas - (1) - Attraction (2004)
- 2,000 Guineas - (1) - Mister Baileys (1994)
- Ascot Gold Cup - (3) - Double Trigger (1995), Royal Rebel (2001, 2002)
- Cheveley Park Stakes - (1) - Lumiere (2015)
- Coronation Stakes - (1) - Attraction (2004)
- Dewhurst Stakes - (1) - Shamardal (2004)
- Falmouth Stakes - (1) - Nahoodh (2008)
- Middle Park Stakes - (2) - Awzaan (2009), The Last Lion (2016)
- St. James's Palace Stakes - (1) - Bijou d'Inde (1996)
- Sun Chariot Stakes - (1) - Attraction (2004)
- Bayerisches Zuchtrennen - (1) - Lady Jane Digby (2010)
- Preis von Europa - (1) - Jukebox Jury (2009)
- Rheinland-Pokal - (1) - Yavana's Pace (2002)
- Irish 1,000 Guineas - (1) - Attraction (2004)
- Irish St. Leger - (1) - Jukebox Jury (dead heat 2011)
- Matron Stakes - (1) - Attraction (2005)
- Phoenix Stakes - (1) - Princely Heir (1997)
- Gran Criterium - (3) - Lend a Hand (1997), Pearl of Love (2003), Kirklees (2006)
- Dubai Sheema Classic - (1) - Fruits of Love (1999)
- Russell, Colin (23 October 2017). "Johnston marches on to 4,000 with all-time British record firmly in his sights". Racing Post. Retrieved 23 October 2017.
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