The number in parenthesis is how many losses a person has for that particular tournament (Banks, 1p, 9 ball).
(0) - no losses
(1) - 1 loss - player has used their buy back option
(2) - player is out of that event
The only number that runs continous through all 3 tournaments is the points which is next to the win loss but in "squared" parenthesis [ ]. This is a players points towards the all around title.
The scrolling chart on the website used to be broadcast to all the hotel rooms at the Executive West hotel so you didn't have to go down to the tournament room to see what was going on. I haven't been to the new venue so I don't know if the casino does this or not.