International Sports Car Racing Day is observed worldwide on the third Saturday of March, coinciding with the 12 Hours of Sebring, a prestigious endurance race held at Sebring International Raceway in Florida. This holiday celebrates the sport of car racing, particularly focusing on sports cars, which are designed for dynamic performance. The origins of sports car racing date back to the 1920s, with the first significant event being the 1923 24 Hours of Le Mans. Since around 2013, the Saturday of the 12 Hours of Sebring weekend has been recognized as this special day. Enthusiasts celebrate by learning about sports car racing, attending races, hosting watch parties for the 12 Hours of Sebring, and sharing their experiences on social media using hashtags like #InternationalSportsCarRacingDay. The event highlights the endurance aspect of racing, with the 12 Hours of Sebring being one of the three races that form the Triple Crown of endurance racing.