For any decent strategist, blackjack is a game of situational decisions. One of these decisions, which most veterans will tell you never to make, is splitting 10s – especially when facing a 5 or 6 from the dealer.
If you split the 7's and assume you catch a ten, you'll have a total of 17. Not only will that beat all those totals except the 17, the dealer has a good chance of busting. On the other hand, if the dealer has an 18 or better, you're pretty much going to lose most of the time, so there is no point in putting more money in the house's pocket. Firstly, splitting in blackjack can only occur after you’ve been dealt a pair of the same value cards on your initial hand. For instance, two 8s, two 10s, two Jack’s etc. When that happens you will immediately get to split, if you want, because it’s always optional. When you are allowed to Double Down After Split, you’re going to split 2’s and 3’s when the house has the upcards of 2 through 7. You’re going to split fours (4,4) when the house shows a 5 or 6, and 6’s are split when the house shows 2 through 6. When DDAS is not available, you will absolutely be splitting less. The only time you'll split 4's is when the dealer upcard is a 5 or a 6.
Splitting in blackjack is pretty easy once you get the hang of it. If you are dealt a pair, you may have the option to ‘split’ it to form to two hands. Once you split, you will be dealt two new cards and carry on betting on both hands. So, a second wager will be placed, equal to your original bet. Let’s take the following example: Suppose.
However, casino gambling expert Mark Pilarski says there are actually a “few exceptions” to that rule.
Pilarski has a great deal of experience in the field of blackjack. He spent 18 years working for 7 different casinos. These days, however, Pilarski has left the commercial casino industry behind, instead working as a journalist. He has his own nationally syndicated column called Deal Me In, writes periodicals for numerous gaming magazines and sells his own award-winning series of Audio-Books called “Hooked on Winning”.
Continue reading to learn more about why Pilarski considers there are exceptions to this Golden Rule of Blackjack.
LOOKING TO PLAY BLACKJACK ONLINE? Visit ourOnline Real Money Blackjackpage and get our complete list of legit online casinos that offer many different variants of the game.
Odds Of Winning When Splitting 10s – Should You Split?
Last week, Mark Pilarski tackled a tough subject when one of his readers, Herb C., asked the following question:
When Can You Split Your Cards In Blackjack
“I am aware that you never – ever – ever split 10s against a dealer’s 5 or 6. However, I have been tempted to do so when no one else is at the Blackjack table. My question is what is the percentage odds of winning (or losing) by doing so?”
When Can You Split In Blackjack
Mark first addressed the blackjack strategy of John Scarne, who published ‘Scarne on Cards’ in 1949. Scarne felt that splitting 10s was a good strategy, but that was 65 years ago, before computers were able to analyze hand statistics. In 1962, Edward Thorpe used an IBM 704 to analyze blackjack hands, and when he published his results in ‘Beat the Dealer’, the theory of splitting 10s was abolished.
“Since then,” wrote Mark, “I can’t think of any blackjack authors that recommend splitting 10s in most, if not all, cases.” He said that he ran his own 20-million hand simulation on a program called BJ Trainer. The results “clearly favored leaving those 10s unaided versus splitting them, even against a 5 or a 6.” Pilarski reasoned, “I favor taking computer results over advice written in 1949 every time.”
Tips For Splitting 10s In Blackjack – The Exceptions
The blackjack strategist went on to describe a few very rare occasions when he himself felt it was in his best interest to split 10s in a blackjack game. The first is during a game of Face-Up 21, a blackjack variant in which both of the dealer’s cards are exposed.
Blackjack Double Up System
- Mark said splitting 10s is a good strategy so long as the dealer’s confirmed total is “13, 14, 15 or 16.”
- Pilarski also noted that, for an experienced card counter, it is a good idea to split 10s against a dealer’s 6 if the count favors a lot of high cards left in the deck, such as a count of 6 or above.
Mark said that there is only “one other scenario where splitting 10s can be the better play than standing.” He described a situation which he himself experienced. It was the final hand of a blackjack tournament, and Pilarski had been dealt a 20. Although he knew the most probable way to win the hand was to stand, doing so “wouldn’t have won enough money to overtake” the dealer. So he chose to split the 10s and got lucky, winning enough chips to move on to the next round of the blackjack tournament.
Odds Of Winning Or Losing
As for Herb C’s original question, pertaining to the “percentage odds of winning or losing”, Mark said, “the statistical data on how often you will win when you split a pair of 10s against a dealer showing a 6 is 64% of the time.” Thus the expected profit would be just $56 for every $100 wagered on such a hand.
Mark then examined the odds of “standing pat on your 20”. The blackjack analyst said that, “by standing, you will win around 85 percent of the time, and will make about $14 more per $100 wagered than splitting.”
In conclusion, Mark Pilarski recommended that a blackjack player “stand on your 20” in all situations, outside of those “few exceptions” listed above.
“Your fair share of being dealt a 20 is approximately 9.2% of the time, and I just don’t want you putting that stellar hand in unwarranted jeopardy”, Pilarski wrote.
Split 10s And Win!
The Golden Rule is still to never split 10s when playing blackjack. However, as you’ve seen, there are a few very specific exceptions that could make splitting a sound choice.
Are you ready to split 10’s and win? Here are some online casinos that offer countless blackjack games to test this strategy on:
- Amaizing new and legit online Casino for US players
- Fast payouts on credit card and no fees
- Hundres of games to play on mobile and desktop
- Live dealer blackjack, baccarat, and roulette
Deposit Options include:- visa
- mastercard
- bitcoin
- debit
- Most Reputable Online Casino
- Up to $1,000 Welcome Bonus
- Visa, MasterCard, & More Deposit Methods
- Offers Live Casino Games
Deposit Options include:- visa
- paypal
- neteller
- mastercard
- debit
100% up to €250- Safe and Secure Online Casino
- $/€1600 Casino Welcome Bonus
- Play Over 400 Casino Games
- Huge Jackpot Slots
Deposit Options include:- visa
- mastercard
- paypal
- check
- wire
- neteller
- skrill
100% up to €1600- Legit Online Casino
- $200 Casino Welcome Bonus
- Accepts Visa, MasterCard, eWallets, & More
- Dozens of Casino Games to Pick From
Deposit Options include:- visa
- mastercard
- neteller
- paypal
- wire
100% up to €140- Large Australian Bitcoin-Friendly Casino
- Mobile Friendly
- Up to $2,250 in Welcome Bonuses
- Large Selection of Pokies
Compatible with:- windows
- apple
- android
- mobile
- Safe and Legitimate Australian Casino
- 100s of Slots and Table Games
- Mutiple Daily Deposit and Reload Deals
- Easy Deposits with Bitcoin
Compatible with:- windows
- apple
- android
- mobile
- Legit and reputable online casino for US players
- Play online at any device
- 2 live Casinos with dozen of live dealer games
- 14 deposit methods, including Visa and Bitcoin
Deposit Options include:- visa
- mastercard
- bitcoin
- skrill
- neteller
- Trusted, Legit USA online Casino
- Quick Payouts, Easy to Use Software
- Visa, Bitcoin and Mastercard accepted
- Live dealer blackjack, baccarat, roulette and more
Compatible with:- windows
- apple
- android
- mobile
Splitting is an interesting component of playing Blackjack that allows you to enter two hands in the same round if the first two cards in your initial hand are of the same value. So what is splitting, when can you do it and when should you? Read on to find out.
What is splitting in Blackjack?
A player can split in a round of Blackjack if their opening two cards are of the same value. This means any pair from Ace through to nine and any two cards valued at ten (for instance, a ten and a Queen).
If a player decides to split, they must place a second bet for that round of the same value as their original bet, essentially doubling their stake. The two cards are then treated as the first card of two new independent hands that are played out separately. Should one of these hands become a pair, the player is allowed to split again and enter a third hand whilst tripling their stake, and so on.
Generally, you are allowed to hit or double down on a split hand, with the exception of if you have split two Aces, in which case the two hands are often not allowed to consist of more than two cards. In some cases, a Blackjack achieved on a split hand will not count as such, and simply be valued at 21.
In a game of Blackjack, opportunities to split will likely be rare. You have an approximate 0.5% chance of getting any pair from Aces to nines in your opening two cards, and a 9.4% probability of getting two cards valued at ten.
When to split in Blackjack
It is arguably universally agreed that there are two scenarios in which you should always split: if you have a pair of Aces or a pair of eights.
You must carefully consider if you are going to split in Blackjack.
While you are likely to be prohibited to getting only one more card on two split Aces, this nonetheless presents two separate opportunities to get Blackjack. There will be an approximate 30.4% chance of a hand starting on an Ace getting Blackjack, equating to a 51.6% probability that at least one of your two hands will do so.
Meanwhile, a pair of eights presents a value of 16. This is widely considered to be the weakest opening hand in Blackjack, by virtue of the fact it is one beneath the minimum value of 17 that the dealer is required to finish on (meaning it is always likely to lose) but has a significant risk of going bust when hitting. Splitting a pair of eights averts this problem.
For a pair of nines, you should split in all circumstances unless the dealer’s face up card is a seven, worth ten or an Ace, in which case you should stand. If the dealer’s face up card is a seven, the most likely outcome is that their second card will be worth ten, meaning they will be forced to finish the round with a hand worth 17, less than your hand’s value of 18.
If the face up card is worth ten or an Ace then they have a chance to get Blackjack, meaning standing on a value of 18 is the option that presents the best chance of winning.
With the exception of pairs of fives, for pairs between two and seven you should look to split when the dealer’s face up card is certain values between two and seven and they are at the greatest risk of going bust. The information discussed in the last few paragraphs is summarised in the table below:
Blackjack splitting strategy
NB: This table assumes four to eight decks in play and that the dealer hits on a soft 17.
When not to split in Blackjack
Under no circumstances should you split on a pair of tens. An opening hand worth 20 is very strong and can only be beat by a Blackjack or a three-card hand worth 21, and the dealer has just an approximate 12.2% chance of getting this in any given round. When splitting a pair of tens, you are likely to end up with two separate hands both worth less than 20, essentially spurning a strong opportunity to win the round by putting yourself at risk of doubling your losses.
You should also never split on a pair of fives. In this situation, the best approach is to double down, as this will provide an approximate 53.8% chance of finishing your turn with a strong hand containing a value of 18 or higher. The exception here is if the dealer’s face up card is worth ten or an Ace and they therefore have a chance to get Blackjack, at which point you should hit.
For pairs of twos, threes and sevens you should not split if the dealer’s face up card is at least an eight, and for pairs of fours and sixes you should not split if the dealer’s face up card is at least a seven. For pairs of fours, you should also never split if the dealer’s face up card is beneath five, at which point they have a plausible opportunity to build a high value hand via three cards.
Enhance your Blackjack strategy
If you’re looking for general advice on how to play Blackjack, read our guide to Blackjack. If you want to learn more on how to inform your Blackjack strategy, remember to read our articles on how to double down and surrender, alongside how to place a side bet and insurance bet.
We also have an article outlining an advanced Blackjack strategy. If you want to learn more about Blackjack beyond how to play the game, you can read about the history of Blackjack.
Play Blackjack on Pinnacle Casino
Pinnacle has a wide range of Blackjack games for you to enjoy, including Live Blackjack, Classic Blackjack, Vegas Strip Blackjack and many more!