Stop Playing GTO Against Blinds That Fold Too Much

Contrary to popular belief, preflop No-Limit Hold’em is not “solved”.

Not in the sense that we don’t have GTO sims for it, but rather because a lot of people just don’t play like it, especially in lower-level fields.

Does this mean that following the GTO charts is wrong? If your goal is not to be exploitable, it’s not wrong. If your goal is to maximize your profit, it certainly is.

So, in this article, I am going to break down how you should play when you’re up against Big Blind and/or Small Blind players who are too tight.

Spoiler alert: You’re not going to be playing GTO!

Let’s dive in!

The Quick Fix

I’ll get straight to the point so that if you are looking for something highly tactical, it’s immediately useful. Afterwards, I will explain in more depth so you can understand the reasoning behind your new optimal strategy.

We define an opponent who is playing too tight as a player who falls into one or more of the following two categories:

• Folds too many hands
• Doesn’t 3-bet with enough hands

This is all benchmarked against the GTO strategy as calculated by the CFR algorithm. We base everything off of those solved outputs.

So, against a tight player by our definition, you should expand your opening range way more than you expect.

If this is roughly our starting baseline on the Button:

And this is roughly how the Big Blind should respond against it:

But instead he is defending close to this:

(Roughly 5% less 3-betting and 3% more folding)

Then this is how you should actually be open-raising from the Button:

You should significantly more often, from 43.6% against a Big Blind playing well, all the way up to 63.6%. A 5% under 3-bet and 3% over-fold opens the door for you to RFI with impunity.

Full disclosure, this strategy generates “only” 2bb/100 extra just from the preflop adjustments alone. But there’s a hidden benefit here: by opening way more, you get into pots with this type of player much more frequently.

And why is that good? It’s easy: humans tend to have predictable, correlated patterns. A player who is tight preflop is almost always going to be tight postflop.

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In the model above, the solver can only take advantage of the preflop leaks because postflop, the algorithm is unbounded again in BB’s shoes, which leaves no room for an edge to be generated. That is absolutely not the case in reality.

So while you only win an extra 2bb/100 preflop, you are going postflop with a bluff-heavy range against an opponent who will continue forfeiting the pot too frequently compared to the GTO solution.

That is compounded exploitation at work. And not only do you get that small 2bb/100 edge, you also get to apply it almost 50% more often, and win more postflop while you’re at it.

The Why Behind The Strategy

The decision whether or not to open-raise hinges on one concept: equity.

More precisely:

• Equity – The share of the pot that you have as a fundamental mathematical law of the game
• Fold equity – The share of the pot (or equity) that you can steal from your opponent

Equity

Every hand has a certain amount of equity preflop. Even the weakest hand possible, 72 offsuit, has a nearly 12% chance to beat the strongest hand you can get dealt, which is pocket Aces:

The more equity you have, the higher the expected value of a raise is. The opposite is also true.

Fold Equity

Whenever your opponent folds, he gives up his equity in the pot. His equity goes to 0%, yours goes to 100%. You win the whole pot immediately.

Whenever your opponent calls, he realizes some of his equity in the pot.

Whenever your opponent 3-bets, he makes you give up your equity in the pot with the bottom of your range.

When you have an opponent who folds too often compared to GTO, he gives up his pot equity too often.

What this means is that every hand in your range increases its share (or equity) of the pot, since they get to have 100% equity in the pot more frequently when the opponent folds. This means hands that otherwise have too little equity to open profitably can now do so because they steal more equity than they should be able to.

Conclusion

Since the Big Blind is offering too much free equity compared to what he should (through a combination of over-folding and/or under 3-betting), this artificially increases the equity of all hands in your range. This pushes hands that would otherwise not have enough raw equity to open-raise profitably above that 0 EV bar, thus creating an optimal strategy that revolves around open-raising trashier hands.

This effect is stronger the fewer players are left to act as the fold equity effect increases.

That’s all for this article! Hope you enjoyed it and that you learned something new from it!

‘Til next time, good luck, grinders!

To learn more about exploits that work against regs in 2026, read: 3 Cash Game Exploits That Print Against Today’s Regs (Backed By Data).

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Enter Upswing Poker's free online qualifier on ClubWPT Gold for a chance to win one of 10 seats to the 3M guaranteed Super Gold Million this December at the Wynn in Las Vegas.