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How to Beat 21+3 Blackjack Side Bet in Canada

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Daniel King / 2025-07-24

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Blackjack side bet 21+3 is a side wager played alongside a standard game. 21+3 was initially introduced in Las Vegas in 2001 and has grown in popularity over the last two decades. This side bet can be described as a mix of typical Blackjack and three-card poker, which offers players some attractive odds.

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How does 21+3 Blackjack Side bet work

21+3 Blackjack is a side bet that enhances a player’s experience and makes a classic game of Blackjack more exciting. Such a side bet can be extremely rewarding with a little bit of luck. The rules of Blackjack side bet 21+3 are simple. It is a bet you make on the first two cards of your hand and the dealer’s face-up card to make one of the hands for three-card poker.

Compared to many other side bets, the house edge for the 21+3 side bet is reasonable. However, the house edge can vary between 2.78% to 13.39%, depending on the different variations of the side bet. A lower house edge translates to better chances of winning, and using effective strategy can help you lower the house edge further. Additionally, this wager allows players to win on multiple outcomes, making it an exciting option.

The Ultimate Guide to The 21+3 Blackjack Side Bet

21+3 Blackjack is essentially a bet on whether your first two cards and the dealer’s face-up card will combine to make a three-card poker hand. These three-card poker hands are:

  • Flush: All three cards are in the same suit
  • Three of a kind: All three cards have the same denomination/value
  • Straight: All three cards have consecutive values, for example, 3-4-5
  • Straight flush: All three cards are of the same suit and have consecutive values
  • Suited three of a kind: All three cards are of the same denomination/value and the same suit

You can place your side bet before the cards are dealt. Usually, the table will have a box for you to put your stake in for the bet. If your first two cards and the dealer’s face-up card make one of the above-mentioned hands, you win the bet. If not, you will lose your stake on the side bet. Your 21+3 blackjack payouts will be based on the hand you get.

blackjack 21+3 side bet odds

Blackjack 21+3 Side Bet Odds

Originally, the 21+3 side bet would pay 9:1 for a winning hand. However, there are more options nowadays with the growing popularity and the different casinos offering this side bet. 21+3 blackjack payouts and odds can vary depending on the casinos and the operators. The odds are attached to the five winning hands and are related to the probability of the players landing those hands. Estimated odds for 21+3 Blackjack are as follows:

  • Flush: 5/1
  • Straight: 10/1
  • Three of a kind: 30/1
  • Straight flush: 40/1
  • Suited three of a kind: 100/1

It is in your best interest to check the odds with the land-based or online casino you are playing at to construct a good Blackjack side bets strategy.

Conclusion

21+3 Blackjack has become extremely popular with blackjack players over the recent years. The high odds offered by casinos add an element of excitement to a game. In addition, blackjack side bets can have highly lucrative payouts, and a good strategy can help you maximize your earnings.

 

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FAQ

What are 21+3 Blackjack Rules?

The 21+3 Blackjack side bet requires players to place a bet before the cards are dealt. If available, you can do this while playing a standard game of Blackjack. The wager is a bet on your first two cards and the dealer’s face-up card to make a three-card poker hand. If you receive a winning hand, you are awarded a payout based on it. At the same time, you lose the bet if you don`t get a winning hand.

Can You Play 21+3 Blackjack Online?

Yes, online casinos have played a crucial role in making the 21+3 side bet as popular as it is. Many online platforms offer the side bet along with Blackjack. And the majority of them even allow players to play online for free to gain experience.

What are the odds of getting suited trips in 21+3 Blackjack?

Suited trips or a suited three of a kind are rare and usually come with odds to match that. For example, many casinos offer 100/1 odd on suited trips.