[admiralfluff]

All you can do is make the best estimate you can. There are no standard rules. You have to evaluate the chances your opponent will fold based on whatever information you have. This isn't to say these decisions aren't important, just that poker tracker won't help you maintain a stellar recodr in these situations. estimating folding euities, showdown value, and choosing a correct line HU is one of the most difficult parts of the game for me, and, I would suspect, many players.