The ACC–Big Ten Challenge (or Big Ten–ACC Challenge as it was called in alternating years) was an in-season NCAA Division I men's college basketball series that matched up teams from the Atlantic Coast Conference (ACC) and the Big Ten Conference (B1G). ESPN was a key part of the creation of the challenge and held the broadcast rights to all the games. The ACC–Big Ten Challenge occurred early in the non-conference season, typically around late November/early December. Each game was hosted by one of the participating schools, with teams typically alternating home and away status in each successive year.