Born in Walton on Thames, Emmett began his career in 1989 at Brands Hatch. In 1989, he won the 350cc Production Championship. He also won the Avon Tyres Trophy for "the most talented young rider with the most promising future". Previous winners included John Surtees, Mike Hailwood and Barry Sheene. He competed in his first Grand Prix in 1993 riding for the Shell-Harris Yamaha team, finishing the season in 19th place in the 500cc class. In 1994, Emmett finished in 15th place as a member of the Suzuki factory racing team, followed by two 22nd-place finishes in 1995 and 1996.

In 1999, Emmett competed in the Superbike World Championship, finishing in 28th place aboard a Ducati. Also in 1999, he won the closest ever British Superbike Championship race, defeating Troy Bayliss by just 0.001sec. In the 2001 Superbike World Championship, he finished in 32nd place after competing as a wildcard in a single event.

...
Wikipedia