Doubling your bet in blackjack in exchange for receiving exactly one more card.
Doubling down means doubling your original bet and receiving exactly one additional card. You cannot hit again after doubling. It's the most profitable play in many situations because you're increasing your bet when you have a mathematical advantage.
Basic strategy says to double on hard 11 against any dealer card 2-10, hard 10 against 2-9, hard 9 against 3-6, and various soft hands. These are the situations where you're statistically most likely to end up with a strong hand.
Failing to double when you should is one of the most costly mistakes in blackjack. You're leaving money on the table every time you miss an optimal double.
You are dealt 5-6 (total 11) against the dealer's 6 at a MGM Grand blackjack table. Basic strategy calls for a double down: you push an extra $50 next to your original $50, receive exactly one more card, and stand.
The math favors doubling because dealer 6 busts roughly 42% of the time, and any 10-value card gives you 21. Expected value on the doubled hand is about +67 cents per dollar, versus +22 cents if you just hit. Over a session, missing double-down spots on 11, 10, and soft 18 vs weak dealer upcards surrenders nearly 1.5% of theoretical EV — more than the entire house edge on a perfect-strategy game. Always double on 11 vs anything except a dealer Ace.
<p>You are dealt <strong>5-6 (total 11)</strong> against the dealer's <strong>6</strong> at a MGM Grand blackjack table. Basic strategy calls for a double down: you push an extra $50 next to your original $50, receive exactly one more card, and stand.</p><p>The math favors doubling because dealer 6 busts roughly <strong>42%</strong> of the time, and any 10-value card gives you 21. Expected value on the doubled hand is about <strong>+67 cents per dollar</strong>, versus +22 cents if you just hit. Over a session, missing double-down spots on 11, 10, and soft 18 vs weak dealer upcards surrenders nearly 1.5% of theoretical EV — more than the entire house edge on a perfect-strategy game. Always double on 11 vs anything except a dealer Ace.</p>
Doubling your bet in blackjack in exchange for receiving exactly one more card.
<p>You are dealt <strong>5-6 (total 11)</strong> against the dealer's <strong>6</strong> at a MGM Grand blackjack table. Basic strategy calls for a double down: you push an extra $50 next to your original $50, receive exactly one more card, and stand.</p><p>The math favors doubling because dealer 6 busts roughly <strong>42%</strong> of the time, and any 10-value card gives you 21. Expected value on the doubled hand is about <strong>+67 cents per dollar</strong>, versus +22 cents if you just hit. Over a session, missing double-down spots on 11, 10, and soft 18 vs weak dealer upcards surrenders nearly 1.5% of theoretical EV — more than the entire house edge on a perfect-strategy game. Always double on 11 vs anything except a dealer Ace.</p>
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