I know it would depend on where you live. I am wondering specifically for Pennsylvania but Other states would be nice to know as well. I know betting on a game of chance is gambling but I am not sure if pool is considered a game of chance or skill? I know most pool halls I have been in have signs saying no gambling. I was under the impression if you bet your opponent and do not have anyone holding the money for you and no stakehorses are involved it was not considered gambling. However, if others bet on the outcome of your game that was gambling. Maybe I am just confused as to what gambling really is.