ALL Preflop Leaks You'll Ever Have, Beginner To Pro

Storyline / Purpose

The video is a “leak audit” of poker pre-flop play, starting from beginner mistakes and moving toward higher-stakes mistakes. The core promise is to:

• Identify what hands/lines you’re using incorrectly (or not using enough)
• Show how optimal ranges change with rake
• Explain how these mistakes impact EV across:
  • Open-raising (RFI)
  • Big blind defense
  • 3-betting
  • 4-betting
  • 5-betting

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Gameplay highlights & key ideas discussed

1) Opening leaks (RFI: “Raise First In”)

Main beginner leak: Opening too few hands (being too tight).

How rake changes range structure

• Higher rake → ranges shift toward higher-card hands, since calling/3-betting costs more rake and high-card blocker effects matter more.
• Lower rake → you can open more low pocket pairs and suited connectors.

Example adjustment theme

• In high-rake environments, some hands that look playable (e.g., certain low connectors/pairs) should open less often.
• Meanwhile, higher-card hands should open relatively more.

Specific “missed” opens called out

• From Under the Gun (UTG):
  • Likely missing suited kings like K5s–K8s
  • Missing offsuit broadway-ish hands like KJo, AJo, QJo
  • Sometimes missing KTo in higher-rake contexts

Table dynamic tip

• In passive pools (where opponents don’t 3-bet enough), marginal opens can become positive EV / closer to printing.

Practical takeaway: Rebuild your RFI ranges by position—especially UTG—and by rake; don’t be overly nitty, but also don’t open too wide in aggressive high-rake environments.

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2) Big blind defense leaks (defending vs opens)

Big blind defense is framed as the second major pre-flop leak.

Main leak: Overfolding the big blind, especially versus small opens.

Population vs solver comparisons

• Players are said to fold too much compared to recommended defense frequencies.

Bet-size sensitivity

• Facing min opens, the big blind must defend more, since you’ve already invested a big blind and can win more by reaching the flop.

Rake cap importance

• Different venues have different rake caps.
• Lower caps (higher-stakes formats / lower site take) allow you to defend wider.
• The speaker emphasizes considering percentage rake + cap, because the cap can dramatically change how wide you should defend.

Practical takeaway: Don’t “auto-fold” connected offsuit/gap hands in the big blind vs small opens; adjust defense width based on the site’s rake cap and opponent aggression.

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3) 3-betting leaks (under 3-betting)

A major theme is massive under three-betting at low stakes.

Population frequencies

• Population 3-betting is described as far below solver targets.
• Example claim: ~3-betting far less than required versus common opens like BTN/SB/CO.

Why it happens

• High rake discourages postflop play, increasing the value of preflop aggression (3-bets, sometimes more).

“No flop no drop” rake rules

• If the operator doesn’t take rake when you don’t reach flop, you get extra incentive to 3-bet more (since you can win without postflop rake friction).

Hands often missed in 3-bets

• Low stakes: people miss offsuit broadways as good 3-bets (example list: KJo, KTo, QJo), plus some suited blocker usage.
• Mid/high stakes: the challenge shifts to “middling” suited / low-card-off balance hands (example “hard” hands):
  • J6s, J7s, Q5s, A7o, A5o
• Another positional example:
  • Versus CO, “hard” suited combos like Q6s and BvC are cited as commonly missed.

Practical takeaway: - Low stakes: open/defend may be too passive—correct with more 3-bets. - Mid/high stakes: stop being overly linear; include the “weird” suited/middling hands that support board coverage and bluffing needs.

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4) 4-betting leaks (missing 4-bets)

The video claims people across stakes “miss four-bets” frequently.

Why 4-bets matter

• Pots grow a lot after 3-bets.
• When you 4-bet and get folds, it’s highly profitable.

Position split

• In-position 4-bets: generally easier (value + blocker hands).
• Out-of-position 4-bets: harder; common mistakes include:
  • Too small frequencies
  • Too large calling ranges

Hands people under-use

• Not only “obvious” offsuit broadways and low suited aces, but also:
  • More specific suited blockers
  • Middling suited hands (repeated examples):
    • K10s
    • A9s
    • Some 6/7/8/65/54 suited-style combos

Board coverage concept

• If your 4-bet range is too narrow (e.g., only offsuit broadways), you run out of bluffs on broadway boards.

Low-stakes-specific focus

• Not only which 4-bets, but how often.
• Low stakes players often don’t 4-bet at required frequencies—even when they know the hands.

Practical takeaway: Build your 4-bet range with enough suited/blocked diversity and hit the correct frequencies—especially at low stakes and from earlier positions.

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5) 5-betting leaks (non-intuitive 5-bets + slow plays)

This section is framed as the “ultimate leak.”

Non-intuitive 5-bet hands

• The speaker says players often forget hands like:
  • A10s
  • A8s

Reverse effect: slow-playing

• Sometimes optimal strategy is to slow play strong hands (not always jam).
• Example scenario:
  • Big blind vs small blind, in-position:
    • slow playing aces/kings can outperform shoving by inducing villain mistakes and letting you realize value from the lower part of your range.

Out-of-position caution

• When OOP facing a 4-bet, 5-bet frequency can become very high, but only if villain’s 4-bet range is constructed correctly (needs sufficient fold equity).

Practical takeaway: - Don’t forget less intuitive 5-bet candidates (especially some suited aces). - Sometimes slow play is best rather than always jamming.

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Strategies / key tips summarized

• Account for rake (especially rake cap): it changes optimal opening, defense, and aggression frequencies.
• RFI (opens):
  • UTG and similar spots: don’t be overly tight; consider missing suited king-offs and certain broadway-offsuit hands.
• Big blind defense:
  • Avoid overfolding vs small/min opens.
  • Defend enough based on bet size and rake cap.
  • Don’t blindly auto-fold connected hands that should defend.
• 3-betting:
  • Low stakes: under-3-betting is a major leak—use more aggression.
  • Mid/high stakes: include “hard” middling suited/low-card unblocker hands to avoid overly linear ranges.
  • If “no flop no drop” exists, 3-bet incentives rise.
• 4-betting:
  • Don’t just know hands—hit the required frequencies.
  • Include suited blockers and middling suited combos, not only broadways, for bluff/value balance (board coverage).
  • OOP: avoid building too large a calling range in high-rake environments; favor 4-bet/shove lines appropriately.
• 5-betting:
  • Don’t forget less intuitive 5-bet hands (e.g., some A-x suited combos).
  • Sometimes slow play is superior to jamming (particularly with aces/kings in position in certain matchups).
  • OOP 5-bet jams depend on opponents having correct 4-bet construction (enough fold equity).

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Gamers / sources featured (mentioned at the end)

• GTO Wizard (for solver/range/rake comparisons)
• PokerStars (referenced for rake cap context)
• GG (referenced for higher-stakes comparisons)
• Metagame pop-up (tool referenced for instant leak identification)
• Narrator/coach: Sal