British Superbike Championship motorcycle racing uses a similar rule after two-thirds of the race has been completed.
The company is a prominent supporter/sponsor of the British Superbike Championship.
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MacKenzie, who hails from Fankerton, near Denny, Stirlingshire; won the British Superbike Championship three times from 1996 to 1998 on a Rob McElnea-run Yamaha team, and the British 250cc and 350cc titles earlier in his career.
He has subsequently ridden in the British Superbike Championship on Kawasaki and latterly Hydrex Honda, gaining his first win in the Superbike class at Croft 2009.