Blackjack Should You Split 10s
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.
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- Never split tens. This is a common rookie mistake in Blackjack. Splitting 10s essentially sacrifices a great hand for a very slim chance at an even better one.
One of the rare occasions when someone counting cards may hit a pair of Aces rather than split them is if the deck count is negative and the dealer’s up card is an eight, nine or ten. Don't split 10s Splitting a 10-10 hand defies all logic unless you are a card counter. Thus, for the employers of basic strategy, you should never ruin a near-perfect hand. Simple math calculations show what a minimal chance the dealer has of getting a blackjack or a multiple-card 21 against your 10 -10. The way you win at blackjack is by playing according to perfect strategy and grinding out wins. If you are lucky enough to be dealt a 20, there is absolutely no reason you should split up your 10s. But that doesn’t stop some gamblers from trying to take advantage of their luck.
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.
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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:
“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?”
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.
- 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.
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When you are playing blackjack games in a land based casino or online via a multiplayer or live dealer gaming platform, you are going to end up sitting next to players who are both experienced and inexperienced, and their level of experience will soon become apparent when you take a look at how they are playing off each hand dealt out to them.
One way of discovering whether a player you are playing with knows the game of blackjack inside out is in regards to how they will play off a pair of 10 valued cards that are dealt out to them. The correct strategy for playing a pair of 10 valued cards, whether those cards are mixed 10 valued cards or two cards that are the same such as a pair of Kings or a pair of 10’s is to stand those hands.
However, as many games are going to allow you to split unalike 10 valued cards as well as a pair of matching 10 valued cards then the temptation to split those cards will be great for an inexperienced player, more so if the Dealer has on display as his or her up facing card a low valued card such as a 3 or a 6 for example.
You should, as a general rule, always stand any pair of 10’s irrespective of what the Dealer is showing, even if the Dealer has on display an Ace or a 10 valued card then you should always stand your pair of 10 valued cards. The reason for this is that you are highly unlikely to get dealt out an Ace or another 10 valued card to a split card which initially contained a pair of 10 valued cards, and the Dealer is unlikely to beat those hands.
You will of course find that from time to time the Dealer will, after you have make the decision to stand any pair of 10’s manage to match your hand with a 20 valued hand and occasionally the Dealer will beat your hand by getting a 21 valued hand or possibly a Blackjack hand, however never veer off the correct playing strategy for the variant you are playing and that will mean you need to stand every single pair of 10 valued cards dealt out to you.
You will, if you decide to split a pair of 10 valued cards then have to pay an additional stake for the new hand formed with one of those cards, which is going to mean you then are risking twice the amount of money as you originally intended to do. Plus you may then be dealt out an additional 10 card alongside any split 10 valued card and you could then be tempted to split those cards as well, which will mean you incur an even larger cost by having to place an additional stake on the extra hand formed by re-splitting.
One thing to also be aware of in regards to why it is not going to be beneficial for you to split a pair of 10 valued cards is that most variants will have rules in place and also a payout structure that will stipulate if you split any pair of 10 valued cards and one of your split 10 valued cards is then dealt out an Ace card alongside it, those hands are, if they win the game, not going to be paid out at odds of 3 to 2 but instead they will be classed as a standard 21 hand and as such if those hands win the game and beat the Dealers hand your winning payout will be just an even money winning payout.
Blackjack Should You Split 10s Without
Blackjack Variants which Call for Players to Split 10’s
The only blackjack game variant which is going to have a perfect playing strategy that will occasionally see you being able to split a pair of 10’s as the correct playing decision is the game of Double Exposure Blackjack.
The Double Exposure Blackjack game is quite different to any other blackjack game you are going to come across either in a land based casino or when playing online. For when you play this game as well as you being dealt out your initial two card hand facing upwards, both of the dealers two initial cards will also be dealt face up.
That does of course mean you are going to see the value of the Dealers hand at all times, and that major player advantage will mean that there are a limited number of times when you are playing this game that you should chose to split your hand when it contains any pair of 10’s.
If you do start to play Double Exposure Blackjack and you have been dealt out any pair of 10 valued cards and the Dealers two up facing cards are worth a hard 13 valued hand through to a hard 16 valued hand then those are the only times that instead of standing your hand you should choose to split them.
Also if you do play this blackjack game variant and the Dealer gets a 20 valued hand and you have a pair of 10 valued cards then the correct playing move for those hands are that you should hit your hand, that may seem like a risky playing decision to make when you both hand a 20 valued hand but surprisingly it is the correct perfect way of playing a pair of 10’s when the Dealer has a 20 valued hand also.
Please do be aware that in regards to the house edge you will be playing against when playing Double Exposure Blackjack it is a high house edge game and as such even though you get to see just what cards the Dealer is holding you are going to be far better off and have many more winning chances by playing a much lower house edge game instead of the high house edge game of Double Exposure Blackjack.
Splitting 10’s in a Las Vegas Casino
Never Split 10s
Since I’ve gone through all the serious reasons of why splitting 10’s is a sucker move I thought I would finish this article with a fun story from when I visited a Las Vegas casino a couple of years ago.
I was staying at the Planet Hollywood in Vegas and decided to try out their blackjack games so I sat down at a table that had a single seat open. After playing a couple of hands one of the other players at the table gets dealt two tens against the dealers 5 and decides to split his cards. The whole table (myself excluded) then proceeds to mock this player for the rest of his session calling him names like sucker and “tourist”.
Should You Ever Split 10s In Blackjack
Now if the -EV from doing this split doesn’t deter you from making this move you should probably still avoid it in order not to be mocked by your fellow players for the duration of your session.