Even if you are a very good tournament player, it is not easy to know by heart the GTO push ranges for the number of players and the number of big blinds. There are many variables to consider: your starting hand, the number of players at the table, your position, whether or not you have an ante, your number of blinds, etc. All of these factors are important to consider when deciding which GTO to push. All of these factors are important to consider when making your decision and it will be nearly impossible to memorize them all. That's why you'll find this tool very useful to use in tournaments or sit'n'gos.
Even though you won't be able to know every situation at your fingertips, here are some tips to help you in your future tournaments. With 1 big blind and antes, your push range will always be 100%. Even though your equity in the hand will usually be 33%, you will triple your stack at the very least, which turns any push (even with 27o) into a profitable push.
At more than 20 big blinds (21+), you should consider options other than the push (e.g. raise to 2bb or 2.5bb).
The closer your position is to the small blind, the greater your push range will be (since your probability of being called will decrease).
When you have a huge advantage over your opponents, you will be able to pass on the most marginal pushes. For example:
In this situation, we are CO (cutoff) with K7s and 12 blinds. Let's see the GTO chart of hands to push profitably:
K7s is at the bottom of our profitable push range. So the push is profitable, but probably at 1% or 2% in the long run. Choosing these push hands will increase your variance in the long run. When you feel that you are much more skilled than your opponents, you can go over these small edges to decrease the variance and exploit your opponents in other ways. For example, in this situation, we could push with KTs and better.
All hands in gray will have to be folded and all hands in green will be EV+ pushes.
In the situation presented above, the antes were 0. But when the antes are high, (at 20% for example), our strategy will have to be more aggressive too. Let's see how the addition of reeds at 20% will change our strategy:
Several hands were added, such as 55, K6s and K5s. If in our first scenario the fold with K7s could be possible, in this scenario the same K7s becomes an almost automatic all in. We can't pass the "small edges" anymore. We are not in a logic of chip preservation, but in a logic of chip accumulation.