This is a discussion on Tournament math vs cash game math? within the online poker forums, in the Tournament Poker section; I want to know is there a difference between tournament math and cash game math?
I am reading Poker Math That Matters by Owen Gaines, will
A good example is a hand like King 7 offsuit. This is playable in cash games but you almost never play such a hand until late stage of tournament as it's so cooler-able.
In tournaments your looseness is affected by how many big blinds you can afford to lose at the given time. In cash games, your looseness should be pretty rigid (only loose if you notice a significantly tight opponent who folds easily and who needs to be raised to get a read on).
The ending of a tournament you must be loose as hell the moment a remotely hand comes along (even king 7 offsuit) and if you hit the flop you need to raise brutally. In cash game this mentality will make you bankrupt.
I have found betting patterns have to be way different in cash. For example half pot bets in cash are standard but in tournament they signal great strength. I think there is less math related to pot sizes in cash games and more based solely on effective stacks.