In chapter 17 of The Theory of Poker, David Sklansky explores the strategic power of position, explaining why acting later in the betting sequence is one of the most valuable advantages in poker. He details how position influences virtually every aspect of hand selection, betting decisions, and profit potential.
Why Position Matters
Sklansky argues that position is an essential — yet often undervalued — strategic factor. Being able to observe opponents’ actions before making your own:
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Improves decision accuracy
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Saves bets with marginal hands
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Extracts more bets with strong hands
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Makes bluffs and semi-bluffs safer and more effective
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Allows more control over pot size
In every poker variant, the ability to act last confers meaningful benefits, though it is especially important in games like hold’em, five-card draw, and draw lowball.
Advantages of Last Position
1. Clearer Decisions with All Hand Types
Acting last provides critical information:
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With fair or marginal hands, you avoid calling only to face a raise behind you.
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With strong hands, you choose optimally between betting, raising, or slowplaying because you see how many others have entered the pot.
2. More Opportunities for Free Cards
In last position:
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You can check behind opponents and take a free card with a mediocre hand.
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In early position, checking a similar hand risks letting someone bet behind you, forcing you to fold.
3. Easier Value Extraction in Heads-Up Pots
Heads-up, the player in last position:
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Can bet any time the opponent checks.
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Can raise when the opponent bets.
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Avoids the guesswork that players in early position face (e.g., whether to bet or risk a failed check-raise).
4. Protection from Surprise Raises
Players in early position may call with medium-strength hands only to be raised by someone behind them.
Last position eliminates this danger.
5. Enhanced Ability to Build Big Pots with Monsters
If someone to your left bets a strong but second-best hand:
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Others call,
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Then you raise in last position,
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Generating both single bets (from callers before your raise) and double bets (from those who call the raise).
No other seat offers this combination of safety and potential value.
6. Greater Flexibility with Marginal Hands
Late position allows you to:
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Call more hands profitably preflop or on third street,
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Because you know no one can raise behind you,
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And because you’ll often maintain late position in subsequent rounds.
Disadvantages of First Position (and When It Helps)
Although early position is generally weak, it has a few limited advantages:
Minor Advantages
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More opportunities for check-raising.
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With an unbeatable hand (“a lock”), you may collect multiple bets by bet–reraising.
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Only early-position raises can sometimes force players to fold before they see others act.
These upsides are small compared to the benefits of acting last.
Major Drawbacks
In early position:
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You must act before knowing what others will do.
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Marginal hands often become traps, costing multiple bets when raises come behind.
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Check-raise attempts frequently backfire when opponents check behind.
Thus, early position requires tightening hand requirements and avoiding speculative holdings that cannot withstand future pressure.
Adjusting Play Based on Position
When the Bettor Is to Your Right
You are forced to act before everyone else:
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You must fold many marginal hands, even strong ones in some formats.
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In five-card draw, you might even fold two aces.
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In lowball, strong one-card draws become folds if multiple players may act (and raise) behind you.
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In stud, mid-sized pairs must often be mucked.
The threat of a raise behind you — and a possible reraise — makes these hands unprofitable.
When the Bettor Is to Your Left
You gain significant flexibility:
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More hands become playable.
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You can often maintain the positional advantage through the entire hand.
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You can extract maximum value with strong holdings.
This positional shift can turn marginal folds into profitable calls.
Example: Small Pairs in No-Limit Hold’em
Sklansky illustrates how dramatically position alters profitability:
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With a small pair (like 6-6), calling a raise in late position with several callers can be profitable because of implied odds if you flop a set.
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The same hand becomes a fold in early position, even if others will likely call the raise, because:
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You have less control,
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You cannot safely build the pot when you hit,
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And you lose value when forced to act before others.
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The exact same cards produce opposite decisions depending solely on position.
Position Relative to Player Types
You want:
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Loose/aggressive opponents on your right, so you always see their actions before yours.
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Tight, predictable players on your left, so you experience fewer surprises.
This arrangement:
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Lets you punish aggression with well-timed plays,
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Helps you trap mistake-prone players,
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Offers clarity when deciding whether to call or fold.
Even player tendencies (tells, tendencies to enter pots, etc.) matter more when they act before you.
Summary
In chapter 17, Sklansky emphasizes that position is one of the most powerful and pervasive forces in poker strategy. The advantages of acting last — better information, more control, safer calls, more profitable bluffs, and greater value extraction — far outweigh the few perks of early position.
The fundamental takeaway:
In poker, unlike a race, you want to be last, not first.