Formula BMW Clarke made his circuit racing debut in 2006 in the one-make
Formula BMW UK series, driving for Nexa Racing. It was a tough rookie season, as he only scored two points all season en route to 22nd place in the championship, and sixth place in the Rookie Cup. He also finished 25th in the end of season World Final in
Valencia. During the season, he achieved his
A levels at the
City of London Freemen's School in
Ashtead, Surrey.
Formula Palmer Audi Clarke moved up to the
Formula Palmer Audi series for the
2007 season. Clarke suffered a poor start to the championship, amassing 76 points from the first seven races. Seven podiums in the last thirteen races, including two wins at
Brands Hatch and
Croft, progressed Clarke up the championship table to fourth, holding off
Jason Moore by two points. Clarke also committed to an Autumn Trophy campaign, and he ended up third in the championship, sixteen points behind champion Richard Keen. Clarke continued in the series in
2008, and this time finished fifth in the championship. Clarke won races at
Oulton Park and Brands Hatch (both races with fastest laps) and also set a fastest lap during one of the races at
Snetterton. A second Autumn Trophy campaign followed, and Clarke finished fourth, with a win, two poles and a fastest lap, all coming at Brands Hatch.
Formula Two 2009 saw Clarke move up to the
FIA Formula Two Championship, driving car number eleven. Clarke was involved in a racing accident during the second race of the
Brands Hatch weekend. On lap nine, Clarke lost control of his car on the exit of Westfield bend, spinning into the tyre wall. Upon impact, one of the wheels detached from the car and bounced back towards the circuit.
Pietro Gandolfi and
Jolyon Palmer both avoided the tyre, but the tyre impacted with the head of
Henry Surtees. His car, with its now unconscious driver, continued straight ahead into the barrier on the approach to Sheene Curve, also losing a wheel, and came to rest at the end of the curve with its remaining rear wheel still spinning. Surtees later succumbed to injuries inflicted by the tyre. Clarke paid tribute to Surtees, describing him as a "quality driver" and a "hard racer". He scored 81 points over the season, achieving two podiums and finishing ninth. He remained in the championship for
2011.
NASCAR/ARCA In 2012, Clarke competed in one
NASCAR K&N Pro Series East event at
Rockingham Speedway driving the No. 14
Toyota for the Brazilian-owned: X Team Racing. He started 14th and finished 19th. Also in 2012, Clarke competed in one
NASCAR K&N Pro Series West race at
NAPA Speedway driving No. 74
Dodge for Andy Woolgar. He started 17th and finished 20th. He also attempted the following event in West Series at
All American Speedway but he failed to qualify for the race. Clarke also competed in one
ARCA Racing Series' race in
2012 season driving No. 97
Dodge for
Creation-Cope Racing at
Salem Speedway. He started 22nd and finished 30th due to a crash.
British Touring Car Championship Ford Focus ST at
Brands Hatch during the
2014 British Touring Car Championship season. In 2014, Clarke entered the BTCC with
Crabbie's Racing in a
Ford Focus. His best result was second at the Brands Hatch final. Clarke retired from racing at the end of that season and set up driver management company Veloce Sport with another former racing driver Rupert Svendsen-Cook, and his step-sister Mariella Bailey. ==Racing record==