Long before the conference was formed, many of the current ACC teams started playing each other regularly, and have been since the turn of the century (the 20th century!). But for various reasons, there were often interruptions in these continuing rivalries. Breaks could frequently run a few years without a game, or sometimes there would be just a single year break in an otherwise long running series. But some teams have managed to matchup every year for over 90 years. So what is the largest number of consecutive seasons that any current ACC members have staged a game?