How to Four Bet in Poker: Complete Guide for 2026

Introduction to the Four Bet

The four bet is a vital move in no-limit hold’em that separates amateur players from professionals. In 2026, understanding the four bet is more important than ever as online and social casino games become more aggressive. This guide will walk you through everything you need to know about executing a four bet effectively, from pre-flop basics to advanced strategies. Whether you’re playing in a sweepstakes casino or a real-money game, mastering the four bet can dramatically increase your win rate.

In simpler terms, a four bet is the fourth raise in a betting round—usually the second re-raise. It typically occurs in the pre-flop phase when a player opens, another player three-bets, and then you re-raise again. That’s the four bet. This move is powerful but must be used selectively. Overusing the four bet can lead to costly mistakes, especially against experienced opponents who will adjust.

By the end of this article, you’ll know exactly when, why, and how to execute a four bet. We’ll cover sizing, range construction, common mistakes, and even how to handle 3-bet happy players. Let’s dive in.

Step 1: Understanding the Basics of a Four Bet

Before you can execute a four bet correctly, you need to understand the betting hierarchy. In poker, the first raise is the open (1-bet), the re-raise is the 2-bet/three-bet, and the re-raise of that is the 3-bet/four bet. Confusing nomenclature aside, the four bet is essentially the third raise in the sequence.

Most four bet scenarios happen pre-flop. For example, Player A raises to 3 big blinds (BB), Player B three-bets to 9 BB, and Player C four-bets to 22 BB. That final raise is the four bet. The size of a four bet typically ranges from 2.2x to 2.5x the three-bet size. Against a three-bet of 9 BB, a standard four bet would be around 20–22 BB.

In live or online games—including those in US social casinos—remember that all poker rules apply regardless of whether real money is involved. Practice makes perfect when learning the four bet.

Step 2: When to Use a Four Bet

Timing is everything with the four bet. You should rarely use it with weak hands. Instead, reserve the four bet for these situations:

• Value hands: Pocket aces (AA), kings (KK), and sometimes queens (QQ) or ace-king (AK). These strong hands can comfortably four bet for value against a wide three-bet range.
• Bluffing light three-bettors: If an opponent three-bets too often (e.g., more than 10-12% from the button), you can four bet them with hands like suited aces or small pairs. This exploits their wide range.
• Defending against aggression: When you’re in late position and face a three-bet from the blinds, a well-timed four bet can punish a blind player who’s overplaying.

A common mistake is to four bet too often. In 2026, with players more aware of frequencies, a balanced four bet range is essential. You want to four bet roughly 5-7% of the time when facing a three-bet. This includes both value hands and a few bluffs.

Step 3: Four Bet Sizing — How Much to Raise

Correct sizing makes the four bet effective. Too small, and you invite too many calls; too large, and you risk folding out weaker hands. Follow these guidelines for a standard four bet:

• In-position (IP): Slightly smaller four bet—around 2.2x the three-bet size. For example, if three-bet to 9 BB, four bet to 20 BB.
• Out-of-position (OOP): Increase size to 2.4x or 2.5x the three-bet to discourage calling. So 22–23 BB against a 9 BB three-bet.

Never four bet less than 2x the three-bet, as that gives your opponent good pot odds to call. Likewise, avoid four bet sizes above 3x, as that often folds out all but the strongest hands. In 2026, players are using software to analyze these sizes, so consistency matters.

Step 4: Building a Four Bet Range

To avoid being predictable, you need a range of hands for your four bet. Here’s a recommended starting point for 100 BB effective stacks:

• Value Four Bet (for value): AA, KK, QQ (vs aggressive three-bettors), AKs (ace-king suited). These hands want to get all-in pre-flop or build a big pot.
• Bluff Four Bet (as a bluff): A5s–A2s (suited aces with low kickers), KQo (king-queen offsuit) sometimes, and small pairs like 55–66. These hands have good blockers (Aces, Kings) and can flop well if called.

Your total four bet frequency should be around 2-3% of all hands dealt, which translates to roughly one four bet per 30-40 hands. Adjust based on opponent tendencies. Against a player who three-bets 15%, you can increase your four bet frequency to 8-10%.

Step 5: Handling Common Four Bet Scenarios

Let’s walk through three common four bet situations you’ll face in 2026 games:

Scenario 1: In-position Four Bet

You’re on the button with AKo. The cut-off opens to 3 BB, and you three-bet to 9 BB. The big blind four-bets to 22 BB. Now what? If you have a strong holding like AA or KK, you can five-bet shove or call. But with AKo, it’s a marginal situation. Many players prefer to four bet call here with AKo and play post-flop. Tip: Don’t four bet and then fold to a five-bet unless you have a read.

Scenario 2: Out-of-position Four Bet

You’re in the big blind with KK. The small blind opens to 3 BB, and you four bet to 22 BB. This is a standard value play. If they call, you’ll be out of position, but your hand is strong enough. Avoid four bet bluffs OOP unless you’re very confident.

Scenario 3: Facing a Three-Bet from a Maniac

A player three-bets 20% of hands from the button. You’re in the cut-off with 88. You can four bet to 22 BB as a bluff, expecting to fold out many weaker hands. If they call, you still have a playable hand. This is an advanced but effective use of the four bet.

Step 6: Common Mistakes When Four Betting

Even experienced players err with the four bet. Avoid these pitfalls:

• Four betting too wide: Don’t four bet with marginal hands like AJ or KT. These hands don’t flop well and get dominated often.
• Inconsistent sizing: Using different sizes for value and bluffs makes you exploitable. Keep your four bet size uniform.
• Folding too often to five-bets: If you four bet with a hand like AK, you should often call a five-bet shove to realize equity. Don’t waste your four bet.
• Ignoring stack depths: With 30 BB or less, four bet becomes less useful because you’re effectively committing your stack. Use all-in moves instead.

Remember that every four bet is a commitment to play a big pot. In 2026, with the rise of short-stacked play in many online casinos, adjust accordingly.

Advanced Tip: Using Four Bet Polarization

In high-level play, players often polarize their four bet range—meaning they use only top-tier value hands (AA, KK) and weak suited aces as bluffs. This makes it hard for opponents to exploit you. For example, you might four bet with AA (value) and A5s (bluff), while flatting hands like QQ or AK. This balancing act keeps your range unpredictable. However, for most recreational players, a simpler four bet strategy with a clear value edge is best.

Always be aware of your image. If you’ve been four betting frequently, observant opponents will adjust by calling more often and five-betting lighter. Mix up your play to stay one step ahead.

Conclusion: Practice Your Four Bet

The four bet is a powerful tool in any poker player’s arsenal. By understanding when to use it, correct sizing, and range construction, you can immediately improve your results in cash games and tournaments. Start by incorporating the four bet into your pre-flop plan, and practice in low-stakes games or sweepstakes casino poker rooms. Remember to play responsibly—poker is a game of skill and chance, and appropriate age restrictions (18+/21+) apply. In 2026, mastering the four bet will set you apart from the competition.

Now that you know the fundamentals, go out and execute a winning four bet strategy. Good luck at the tables!