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About Round 3
The Pirelli GT4 America series returns to Circuit of the Americas for a special endurance race format. This gt4-america event at Circuit of the Americas stands as one of the season's most anticipated competitions, featuring the unique Lone Star Enduro. The three-hour race format distinguishes this round from the standard 60-minute sprint races held at other venues throughout the championship calendar.
Event Format and Competition Structure
The Circuit of the Americas gt4-america race adopts an endurance format that tests teams beyond typical sprint racing. The three-hour Lone Star Enduro demands careful strategy, efficient pit stops, and consistent driver performance. Teams must balance speed with tire management and fuel strategy across the extended distance.
Competition unfolds across three classes based on FIA driver ratings. The Silver class features amateur drivers paired together. Pro-Am teams combine professional and amateur talent. The Am class consists of amateur driver pairings. This multi-class structure creates varied racing scenarios throughout the field.
Circuit of the Americas Overview
Circuit of the Americas in Austin, Texas, ranks as an FIA Grade 1 motor racing facility. The Grand Prix circuit stretches 3.426 miles and features 20 turns. The track runs counterclockwise, which sets it apart from most racing circuits.
Track Characteristics
Elevation changes define the Circuit of the Americas experience. The track climbs 133 feet from its lowest to highest points. Turn 1, known as "Big Red," sits atop a steep uphill climb from the starting grid. This blind, tight left-hander creates prime overtaking opportunities and ranks among motorsport's most challenging corners.
The esses sequence from Turns 3 to 6 demands precision and rhythm from drivers. This section draws inspiration from Silverstone's Maggotts-Becketts-Chapel complex. The back straight provides a long, undulating stretch before the sharp hairpin at Turn 11. Sector 3 presents a challenging sequence of low-speed corners, culminating in the tricky Turn 20 where late braking and smooth exits prove critical.
Facility Features
A 251-foot observation tower offers panoramic views of the circuit and downtown Austin. The facility opened in 2012 as the first purpose-built Formula 1 track in the United States. Legendary racer Mario Andretti completed the ceremonial first laps in his 1978 championship-winning Lotus 79 during the track's official opening.
Participating Teams and Manufacturers
The gt4-america series at Circuit of the Americas features GT4-homologated race cars from multiple prestigious manufacturers. BMW maintains strong representation through teams including Rigid Speed Company, Flying Lizard Motorsports, Stephen Cameron Racing, ACI Motorsports, Auto Technic Racing, BimmerWorld, and Random Vandals Racing. These teams field BMW M4 GT4 entries.
Ford introduces the new-generation Mustang GT4 through TechSport Racing, McCumbee McAleer Racing, and LAP. TechSport Racing's lineup includes drivers Frankie Muniz and Tyler Stone. McLaren Artura GT4 entries come from Flying Lizard Motorsports, Blackdog Racing, and Advance Motorsports.
Mercedes-AMG GT4 cars receive support from Dome Motorsport and Off Leash Motorsports. Porsche fields multiple 718 Cayman GT4 RS Clubsport entries through NOLASPORT, ACI Motorsports, and Kellymoss. Toyota Gazoo Racing GR Supra GT4 and GR Supra GT4 EVO2 machinery appear courtesy of Precision Racing LA and RAFA Racing Team.
Technical Regulations
The Pirelli GT4 America series operates under SRO GT4 regulations. These rules maintain competitive parity among manufacturers through production-based sports cars modified for racing. Strict specifications govern engines, aerodynamics, and weight to ensure close competition.
Balance of Performance adjustments level the playing field between different models. The endurance format requires mandatory mid-race pit stops for two-driver teams, which include driver changes and tire services. This strategic element adds complexity beyond pure speed.
Broadcasting and Coverage
Qualifying sessions and races stream live on the GT World YouTube channel and SRO Motorsports Twitch. Fans can follow all on-track action through these platforms, providing comprehensive coverage of the Circuit of the Americas competition.
Circuit of the Americas Racing Heritage
Circuit of the Americas has hosted multiple prestigious motorsports series beyond gt4-america. The venue welcomes Formula One, MotoGP, FIA World Endurance Championship, NASCAR, IMSA, and IndyCar events. The track's design incorporates elements from famous international circuits, creating a unique challenge for competitors.
The three-hour Lone Star Enduro highlights the circuit's suitability for endurance sports car racing. This format contrasts with the standard sprint races held at most other rounds, adding strategic depth and testing team capabilities across an extended distance. Following the Circuit of the Americas event, the series progresses to Round 3 at Sebring International Raceway, continuing the championship battle.
What Makes This Event Notable
The endurance format at Circuit of the Americas creates a unique challenge within the gt4-america season. Teams must adapt their approach from sprint racing to long-distance strategy. The demanding circuit layout, combined with Texas weather conditions, adds variables that can influence race outcomes.
The multi-class grid produces varied racing scenarios. Class leaders navigate through traffic while battling their direct competitors. The 20-turn layout offers multiple opportunities for position changes, particularly at Turn 1 and the hairpin at Turn 11.
This event promises compelling competition across all three classes. The combination of a world-class circuit, diverse manufacturer participation, and the demanding three-hour format creates conditions for strategic racing and driver skill to shine.