IMSA SportsCar Championship · Sebring International Raceway, United States
The 12 Hours of Sebring is an annual motorsport endurance race for sports cars held at Sebring International Raceway, on the site of the former Hendricks Army Airfield World War II air base in Sebring, Florida, United States. This race was a round of the now-defunct World Sportscar Championship, IMSA GT Championship, and American Le Mans Series. In 2012, the race was the opening event of the FIA World Endurance Championship in a one-off race before being returned to the American Le Mans Series for 2013. In 2014, the event became the second round of the WeatherTech SportsCar Championship. The race is a leg of the informal Triple Crown of endurance racing, along with the 24 Hours of Le Mans and 24 Hours of Daytona.
Typical window: mid-March. Organisers publish the following year's date at different points in the season — the official site above is the authority. This page is rebuilt on every deploy, so a confirmed date appears here as soon as it is public.