Where To Watch Tomorrow's Racing Feast Tomorrow marks the busiest day of the 2021 racing season to date. This is what you need to know. Dan Istitene - Formula 1Getty Images Auto racing has come back slowly this year. The COVID-19 pandemic has forced the postponement or cancelation of season openers for Formula 1, IndyCar, and the FIA World Endurance Championship, and schedule gaps created by those delays mean Formula 1 has raced only once and IndyCar has yet to race, well into Spring. That largely changes tomorrow. The first great racing day of the season means the first confusing schedule of the season, though. Somehow, both NASCAR and IndyCar are racing at the same time tomorrow, despite neither having a major television competitor to hold their scheduling back. Formula 1, meanwhile, is back in Europe, which means early start times that are unfriendly to East coast viewers and even worse for the rest of North America.