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TheMonoposto Racing Club (MRC)^[a] is a single seater,open-wheeled motor racing club in theUnited Kingdom. Its members race a variety of single seater race cars ranging from 1000cc "Mono Moto" cars to 2000ccFormula Three andFormula Renault cars.

Monoposto Racing Club has been in operation since 1958.^[1]

As of 2010, it is the largest single seater championship in the UK, with over 60 regular race entrants.

The aim of the club is to organize single seater racing for the club racer.^[2]

The Monoposto Championship is organized by MRC. It visits most major UK race tracks, includingSilverstone GP,Brands Hatch GP,Snetterton Circuit,Donington Park GP,Oulton Park,Castle Combe,Pembrey andRockingham.

It used to have an annual non-championship event atSpa-Francorchamps but rising costs lead to this being cancelled. The club also runs the autumn Tiedeman Trophy Championship, named after the club's founder Frank Tiedeman, who died in 2013. Occasional non-championship rounds are also run.

Points are scored for all finishers in their class order, with 15 for winner down to 1 for 12th and below. There is also a point for fastest lap in each class. Invited drivers are not eligible for points.^[3] The championship is decided from the best 10–12 scores from around 12 to 14 rounds. Events are generally run over 2 days with 4 track sessions per grid. This may be a separate qualification and race each day or a single qualification session and 3 race sessions.

Productionchassis must be at least four years old, except for homemade chassis.^[1]

It has several classes of cars, starting with "Mono": Moto 1000, Moto 1400, 1600, 1800, 2000 Classic, 2000, F3 A and F3 B; these are based primarily on the maximum permittedengine size, but also engine tuning freedom, chassis age and chassis materials. Most race meetings have the classes spread over two grids, with the 1000 and 1400 cars on one, and the 2000 classes on another. The 1600 and 1800 classes are alternated between the two, either together or independently, depending on the circuit and expected entry numbers.

According to Monoposto Racing Club's website, as of 2025, the class structure of Monoposto Championship is as follows:^[3][4]

• Mono F3 A: For 2005–2011Formula Three cars with F3 engines and 2006–2008Formula Renault cars without restrictor.
• Mono F3 B: For 1997–2011 F3 cars using traditional Mono spec road-derived and Piedrafieta-tuned Toyota engines, 1997–2004 F3 cars with F3 engines, 2006–2007 Formula Renault cars with a 40 mm (1.6 in) restrictor, and chassis complied to first generationFormula 4 regulations, includingTatuus andMygale first generation F4 cars.
• Mono 2000: For750 Motor Club Formula 4, United States Formula Ford 2000 and up to 1996 Formula Three cars; spaceframe or aluminium monocoque chassis manufactured in 2001 or later; up to 1999 Formula Renault and pre-1996 carbon-tubbed Formula 3 cars.
• Mono 2000 Classic: For pre-1993 aluminium alloy and/or steel construction chassis, as well as pre-1992 carbon fibre composite or aluminium alloy chassis complying to F3 regulations.
• Mono 1800: ForFormula Ford cars using Duratec or Zetec engines. Classic Formula Ford 2000, Formula Vauxhall Junior (16V) and Formula Ireland cars are allowed in this class as well.
• Mono 1600: For Formula Ford, FF2000, Formula Vauxhall Junior (8V) and Formula Renault 1700 cars.
• Mono Moto 1400: For bike-engined cars with engine capacity from 1001 to 1400cc, as well as carbon-tubbed Mono Moto 1000 chassis.
• Mono Moto 1000: For motorcycle-derived-engined cars with an engine displacement of up to 1000cc.

Source:^[5]

• Monoposto Racing Club - Club website
• StartlineOnLine - The Club's 'e-magazine'
• F3 History - a look at what happened, and when in Formula 3

• Motorsport organisations in the United Kingdom
• Auto racing series in the United Kingdom
• Clubs and societies in the United Kingdom
• Formula racing series
• Formula racing

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