ACR tourney cancellation

Does anyone know how many people have to sign-up for a tourney to run at America's Cardroom ? I have googled and searched the ACR website and can't find an answer.

Wait for the start - then you'll see))

The number is different for each tournament. In the PC client it will show for instance "3/6", meaning that 3 players have registered, and the minimum number required for the tournament to run is 6. When the minimum number has been reached, it will only show the number of players registered like "8" or "12" or whatever.