efdenny is correct.
isbreak is a technically a boolean (true or false), but its actual value will be 1 or 0 which is functionally the same thing. It's a 1 whenever the tournament is on a break, 0 otherwise. So it "isbreak=1" will be true during any break.
Actually, you want to combine the two, because breakNum will be 1 once the tournament enters the first break, but if I recall correctly, it will remain 1 until the 2nd break. For example, if there are 3 rounds between break 1 and two, breakNum will still have a value of 1 during those rounds. So you want to do something like:
isBreak and breakNum=1