8 Criteria for Choosing Bet Sizes Automatically

Why the Same Hand Should Use Different Sizes

Good bet sizing does not come from a simple instinct like “my hand is strong, so bet big.” Even with the same one-pair hand, you can bet small on a safe board, while on a draw-heavy board you need to charge more. Even with the same bluff, a small bet can be enough when SPR is low, and an overbet becomes more natural when you have a large nut advantage.

The goal of this article is not to memorize numbers every time, but to build a sequence of checks for choosing sizes at the table.

1. Increase Your Opens When There Is a Weak Caller in the Blinds

There is a common player type in live cash games and low-stakes online games: someone who calls a 2.5bb open and also calls a 3.5bb open with almost the same hands. If this kind of opponent is in the blinds, there is less reason to let them see a cheap flop with a small open.

For example, when opening hands like AJs, KQs, or 99 from the BTN, 2.2bb-2.5bb may be enough if the blinds are tight regulars. But if the BB calls too much and makes many postflop mistakes, a 3bb-4bb open can create higher EV.

2. OOP 3-Bets Should Be Larger Than IP 3-Bets

When you are out of position, you have to act first after the flop, and your opponent can respond more accurately after seeing your action. That is why OOP 3-bets should not give your opponent a cheap chance to use position.

A general guideline is as follows.

If the CO opens to 2.5bb and we are 3-betting on the BTN, 7.5bb-8bb is natural. By contrast, if we are facing the same open from the SB, increasing to 10bb-11bb is usually better.

3. Bet Small on Dry, Static Flops

On low-connectivity boards like A83 rainbow, later cards are unlikely to dramatically change the situation. On these boards, your opponent’s weak hands cannot withstand a big bet very well, while their strong hands will continue even against a small bet.

That makes a small c-bet, such as 25%-35% of the pot, efficient. A small size can still represent the range advantage on an A-high board while also lowering the cost of your bluffs.

4. Bet Big on Wet, Dynamic Flops

By contrast, a board like J♠T♠4♦ is different. There are many combinations with equity: flush draws, open-enders, gutshots, two overcards, and more. If you bet small with a strong one-pair hand or two pair here, your opponent gets too good a price to see the turn.

5. Look at SPR First and Plan the Next Streets

SPR is the remaining effective stack relative to the current pot. For example, if the pot is 20bb and the remaining stack is 80bb, the SPR is 4. This number tells you “how many bets it may take to get all-in.”

The problem is betting too big on the flop and leaving only a 25% pot all-in on the river. That kind of shove is awkward for value and weak as bluff pressure. On the other hand, if you always go too small, it becomes difficult to get stacks in with strong hands.

Practical Feel

In low-SPR 3-bet pots, stacks can go in naturally even with small bets. In high-SPR single-raised pots, you need to mix in larger sizes with strong hands and strong draws to create river all-in pressure.

6. Consider Overbetting When You Have a Large Nut Advantage

An overbet is not a flashy weapon to use at random. The key question is: “Does my range have many nutted hands while my opponent’s range has few?”

For example, after the BTN opens and the BB calls, if a certain runout gives the BTN more AA, KK, strong top sets, and strong straight combinations, the BTN has a reason to bet larger than the pot on the river. At that point, the range becomes polarized. It is centered around very strong value hands and blocker-based bluffs that interfere with the opponent’s calling range.

7. Turn Double Barrels Are Usually Large

An opponent who calls a flop c-bet and reaches the turn has already had their range filtered to some extent. So the range that bets again on the turn is usually centered around value stronger than medium strength and meaningful bluffs.

If you bet only 30%-40% with this polarized range, problems arise. Your opponent’s one-pair hands, draws, and weak showdown value can continue too comfortably. In practice, it is clearer to treat 66% pot or larger as the default for turn double barrels.

Hands like middle pair, weak top pair, and A-high with showdown value should have some frequency of checking the turn for protection. That way, your checking range is not made up only of hands that have completely given up.

8. Small C-Bets Are Often Enough in 3-Bet Pots

In 3-bet pots, the pot is already large. Because SPR is low, even a 25%-40% flop bet can still allow stacks to go in on the turn and river. Especially on boards where the 3-bettor has a large range advantage, such as A-high, K-high, or low paired boards, a small c-bet is very efficient.

For example, if the SB 3-bets to 10bb, the BTN calls, the pot is 21bb, and 90bb effective remains, the SPR is about 4.3. Even if you bet only 6bb on the flop, the turn pot becomes 33bb, and a large turn bet followed by a river shove can happen naturally.

The Final Sequence to Use at the Table

Conclusion

Bet sizing is not about memorizing an answer sheet. It is about reading the opponent, the board, and the stacks, then setting the right price. On dry boards, you extract profit with small bets. On wet boards, you charge equity with larger bets. OOP, you make your opponent’s positional advantage more expensive. When you have the nut advantage, you use overbets to apply the strength of your entire range.

Once these criteria become natural, you will spend less time wondering, “How much should I bet?” Instead, you will ask the better question: “What price do I want to give my opponent on this board?”

원문: Upswing Poker / Doug Polk 분석