Last Updated: September 13, 2016
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Double Twist Blackjack
Introduction
Double Twist Blackjack is a game I noticed at the Stratosphere in Las Vegas on February 2, 2016. It bills itself as a ugslot game concept, but it is really just blackjack with an optional side bet. For this reason, I am classifying it as a side bet rather than a unique game.
Rules
- The game is based on conventional blackjack rules.
- There are two betting spots per player.
- The player may make a side wager on each betting spot.
- The side wager pays based on the player's initial two cards and the dealer's up card.
- The pay table is shown below. I presume that the player is paid based on the highest win only.
Double Twist Pay Table
| Event | Pays |
|---|---|
| Three-card royal | 50 to 1 |
| Suited three of a kind | 35 to 1 |
| Straight flush | 30 to 1 |
| Three of a kind | 20 to 1 |
| Straight | 4 to 1 |
| Flush | 3 to 1 |
| Pair | 1 to 1 |
Analysis
The following tables show the probability and contribution to the return for 4, 5, 6, and 8 decks.
Double Twist Return Table — Four Decks
| Event | Pays | Combinations | Probability | Return |
|---|---|---|---|---|
| Three-card royal | 50 | 256 | 0.000173 | 0.008659 |
| Suited three of a kind | 35 | 208 | 0.000141 | 0.004925 |
| Straight flush | 30 | 2,816 | 0.001905 | 0.057148 |
| Three of a kind | 20 | 7,072 | 0.004784 | 0.095680 |
| Straight | 4 | 46,080 | 0.031172 | 0.124687 |
| Flush | 3 | 85,120 | 0.057581 | 0.172744 |
| Pair | 1 | 284,544 | 0.192486 | 0.192486 |
| Loser | -1 | 1,052,160 | 0.711758 | -0.711758 |
| Total | 1,478,256 | 1.000000 | -0.055427 |
Double Twist Return Table — Five Decks
| Event | Pays | Combinations | Probability | Return |
|---|---|---|---|---|
| Three-card royal | 50 | 500 | 0.000173 | 0.008634 |
| Suited three of a kind | 35 | 520 | 0.000180 | 0.006285 |
| Straight flush | 30 | 5,500 | 0.001899 | 0.056983 |
| Three of a kind | 20 | 14,300 | 0.004938 | 0.098770 |
| Straight | 4 | 90,000 | 0.031081 | 0.124326 |
| Flush | 3 | 168,200 | 0.058088 | 0.174263 |
| Pair | 1 | 561,600 | 0.193948 | 0.193948 |
| Loser | -1 | 2,055,000 | 0.709693 | -0.709693 |
| Total | 2,895,620 | 1.000000 | -0.046484 |
Double Twist Return Table — Six Decks
| Event | Pays | Combinations | Probability | Return |
|---|---|---|---|---|
| Three-card royal | 50 | 864 | 0.000172 | 0.008617 |
| Suited three of a kind | 35 | 1,040 | 0.000207 | 0.007261 |
| Straight flush | 30 | 9,504 | 0.001896 | 0.056872 |
| Three of a kind | 20 | 25,272 | 0.005041 | 0.100819 |
| Straight | 4 | 155,520 | 0.031021 | 0.124085 |
| Flush | 3 | 292,896 | 0.058424 | 0.175271 |
| Pair | 1 | 977,184 | 0.194918 | 0.194918 |
| Loser | -1 | 3,551,040 | 0.708321 | -0.708321 |
| Total | 5,013,320 | 1.000000 | -0.040478 |
Double Twist Return Table — Eight Decks
| Event | Pays | Combinations | Probability | Return |
|---|---|---|---|---|
| Three-card royal | 50 | 2,048 | 0.000172 | 0.008596 |
| Suited three of a kind | 35 | 2,912 | 0.000244 | 0.008556 |
| Straight flush | 30 | 22,528 | 0.001891 | 0.056735 |
| Three of a kind | 20 | 61,568 | 0.005169 | 0.103370 |
| Straight | 4 | 368,640 | 0.030947 | 0.123786 |
| Flush | 3 | 700,928 | 0.058841 | 0.176524 |
| Pair | 1 | 2,336,256 | 0.196124 | 0.196124 |
| Loser | -1 | 8,417,280 | 0.706612 | -0.706612 |
| Total | 11,912,160 | 1.000000 | -0.032921 |
The following table summarizes the house edge by number of decks.
Double Twist Pay Table
| Decks | House Edge |
|---|---|
| 4 | 5.54% |
| 5 | 4.65% |
| 6 | 4.05% |
| 8 | 3.29% |
Internal Links
Blackjack side bets — Long list of them analyzed.
Written by:Michael Shackleford
