AMA Supermoto Championship
The AMA Supermoto Championship was an AMA Pro Racing-sanctioned Supermoto motorcycle racing series that ran from 2003 through 2009. AMA Pro Racing was a wholly owned subsidiary of the American Motorcyclist Association. An amateur national championship, known as AMA Supermoto and sanctioned by the American Motorcyclist Association as AMA Sports, was launched in 2013 with USA Supermoto as the new promoter. Classes. Main classes consisted of Supermoto (also later known as Supermoto Premier) for 400-450cc, four-stroke, single-cylinder motorcycles, and Supermoto Unlimited, open to two-stroke, single-cylinder motorcycles 490cc and greater, four-stroke , single-cylinder motorcycles. Support classes included the Honda Junior Supermoto Challenge with riders on identically prepared Honda CRF150Fs, and, beginning in 2005, Supermoto Lites for 200-250cc, four-stroke, single-cylinder motorcycles. Course design. Racecourses were designed with approximately 80% pavement and 20% dirt, with jumps, whoop sections, and a flat-track-style turn. Courses were between .6 and 1.1 miles in length. Tabletop and Kicker "Urbancross" jumps were designed, fabricated, and then built on-site by ASD (a subsidiary of All-Access Staging and Productions) and these added an extra Motocross dimension to the paved portion of racecourses. Venues . Unique to the AMA Supermoto championship were the use of temporary race venues in addition to traditional, purpose-built courses. Temporary venues such as Mazda Raceway Laguna Seca (unused portion of the racetrack and a parking lot), Reno (public streets), Columbus (public streets and parking lots) Dallas (Reunion Arena parking lot), Las Vegas (Rio Hotel parking lot and Bally's Casino parking lot), Copper Mountain (parking lot) were converted into racecourses complete with dirt sections and Urbancross ramps. Kart tracks (Miller Motorsports Park, Road America, USA International Raceway ) were also used as the tight, winding circuits lend themselves nicely to  the agility of Supermoto motorcycles. Dedicated racecourses (oval automobile courses with infield road courses) were also used. Examples include South Boston Speedway, Irwindale Speedway, and Music City Motorplex. 2003 Championship Format. The 2003 Red Bull AMA Supermoto Championship (6 rounds) was structured in a winner-take-all format in order to attract riders from other motorcycle racing disciplines who may not have otherwise been able to compete in the new series. The first five rounds were used as qualifying rounds for the final round, the Red Bull Supermoto-A-Go-Go held at the Rio Hotel and Casino in Las  Vegas, Nevada. Riders and teams were able to participate in the final championship event based on points earned in earlier rounds. Seventy-four riders qualified for the Championship finale. The unique championship format was successful in attracting racers who were competing in other series. Examples include Ben Bostrom, Eric Bostrom, and Jake Zemke (AMA Superbike), Chris Carr, Joe Kopp, Jay Shelton and Roger Lee Hayden (AMA Flat Track), and Grant Langston (AMA Motocross). In addition, many riders who had retired from competition in other disciplines participated in the 2003 series. Among them were AMA Supercross Champion Jeremy McGrath, AMA Flat  Track and Superbike racer Larry Pegram, AMA Superbike Champion and Grand Prix racer Doug Chandler, ACU British National Motocross Champion Kurt Nicoll, Grand Prix Champion Kevin Schwantz, AMA Motocross Champions Micky Dymond and Chuck Sun, AMA Superbike racer Mike Smith, FMM Champion Omar Isaak, and French Ice Racing Champion David Baffeleuf. 2004–2009. In 2004 and subsequent years, the Supermoto Championship was a traditional cumulative points championship with points from each round contributing to the championship. Television. The series was broadcast tape-delayed on the Outdoor Life Network from 2003 through 2005, with the 2003 Red Bull Supermoto-A-Go-Go  televised live on November 21, 2003.