Mackenzie, who hails from Fankerton, near Denny, Stirlingshire; won the British Superbike Championship three times from 1996 to 1998 with the Rob McElnea-run Yamaha team, and the British 250cc and 350cc titles twice earlier in his career. He had a long career in the Grand Prix motorcycle racing circuit, debuting in 1984 in the 250cc class. He moved up to the 500cc class in 1986 on a Suzuki before spells on Honda and Yamaha motorcycles. He was 4th in the championship in 1990, and finished in the top 10 in the championship on six other occasions. His final racing season was the 2000 British Superbike series, although he did a farewell one-off at Knockhill in 2001 and stood in for the injured Yukio Kagayama at Donington Park in 2003.

Mackenzie now works in Motorcycle Media, is the Ambassador for the Ducati TriOptions Cup and instructs on track days around the UK and Europe.

Mackenzie has two sons who both race motorcycles – 21-year-old Tarran, and 23-year-old Taylor. In 2016 they won the British 600 Supersport and British Superstock 1000 Championships with Team WD40 and Buildbase BMW respectively.

Points system from 1969 to 1987:

Points system from 1988 to 1991:

Points system in 1992:

Points system from 1993 onwards:

() (Races in bold indicate pole position; races in italics indicate fastest lap)

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Wikipedia