Six Card Bonus is a side bet most commonly seen alongside Three Card Poker. It takes the player’s three cards and the dealer’s three cards, combines all six, and pays according to the best five-card poker hand that can be made from them. That sounds generous because you are effectively allowed to search six cards for a premium five-card result. The catch is that the paytable prices that extra opportunity very aggressively.
Six cards create one separate wager
The cleanest way to understand Six Card Bonus is to mentally detach it from the Three Card Poker main game. The Ante/Play decision asks whether the player’s three-card hand can beat the dealer under dealer-qualification rules. Pair Plus looks only at the player’s own three-card hand. Six Card Bonus instead looks across all six dealt cards and chooses the strongest five-card poker hand available.
That means the side bet can win when the main hand loses, and the main hand can win while the Six Card Bonus loses. Current Kansas Three Card Poker regulations, for example, state that the six-card bonus uses the player’s three cards plus the dealer’s three cards, pays only the highest qualifying five-card result, and has no bearing on the outcome of other wagers. The exact jurisdiction and table rules still control where you play.
This independence is the first protection against bad analysis: never use a Three Card Poker main-game house edge to estimate the cost of Six Card Bonus.
Start with the size of the six-card universe
There are 20,358,520 unordered six-card combinations in a standard 52-card deck:
C(52,6) = 20,358,520
For a commonly analyzed Six Card Bonus structure, the best-five-card categories occur with these combination counts:
| Best five-card result from six cards | Combinations | Approx. probability |
|---|---|---|
| Royal flush | 188 | 0.0009% |
| Straight flush, excluding royal | 1,656 | 0.0081% |
| Four of a kind | 14,664 | 0.0720% |
| Full house | 165,984 | 0.8153% |
| Flush | 205,792 | 1.0108% |
| Straight | 361,620 | 1.7763% |
| Three of a kind | 732,160 | 3.5963% |
| No qualifying hand | 18,876,456 | 92.7202% |
The important number is not just the royal-flush rarity. Under this category structure, a qualifying three-of-a-kind-or-better result occurs only about 7.28% of the time. More than nine rounds in ten lose the side-bet stake outright.
Those figures are published in the current Wizard of Odds Three Card Poker analysis. They also explain why “six cards instead of three” does not automatically mean a cheap bonus bet.
A current regulated paytable example
Kansas rules published in 2025 include this Six Card Bonus schedule:
| Hand | Payout |
|---|---|
| Royal flush | 1,000 to 1 |
| Straight flush | 200 to 1 |
| Four of a kind | 50 to 1 |
| Full house | 25 to 1 |
| Flush | 15 to 1 |
| Straight | 10 to 1 |
| Three of a kind | 5 to 1 |
The same schedule is one of the paytables analyzed by Wizard of Odds. Using the combination frequencies above, it produces a house edge of about 15.28%.
That is a good illustration of why the jackpot-sized top line should never be read in isolation. A 1,000-to-1 royal sounds enormous, but the royal occurs in only 188 of more than 20 million six-card sets under the analyzed classification. Most of the economic weight sits in the losing rounds and the much more common lower-tier payouts.
Why a 7.28% hit rate can still carry a 15.28% edge
A winning frequency answers only one question: “How often does something pay?” Expected value asks the more important question: “When every possible result is weighted by its probability and net payout, how much comes back on average?”
For a one-unit side bet, the calculation is conceptually:
expected return = Σ(probability of each result × net result)
A losing outcome contributes −1 unit. A three of a kind paying 5 to 1 contributes +5 units when it occurs. Rare premium hands contribute large positive amounts, but their probabilities are tiny. Add every row and the example paytable returns about 84.72 cents in expected value per dollar wagered, leaving about 15.28 cents as long-run house advantage.
This is why a bonus can “hit fairly often” compared with a jackpot lottery and still be expensive. The lower prizes are deliberately sized so that frequent small wins do not fully offset the much larger number of losing wagers.
The best-hand rule prevents double counting
Six cards can contain more than one recognizable poker pattern. A six-card set might contain both a straight and a flush candidate, or a full house plus a three of a kind. The wager does not add those prizes together. It uses the single highest qualifying five-card hand under the posted rules.
That rule matters when reading probability tables. The 205,792 flush combinations in the common analysis are not “every six-card set containing five suited cards regardless of a better hand.” Higher categories have already been removed. The categories are mutually exclusive so their probabilities add cleanly to 100% when the losing class is included.
For players, the operational consequence is simple: one Six Card Bonus wager, one best result, one paytable line.
Main-game results can point the opposite way
Imagine the player’s three cards are weak, so the player folds the Ante/Play hand. The dealer’s cards then complete a five-card flush across the combined six cards. Depending on the exact rules, the Six Card Bonus may still be live and can pay even though the main hand was abandoned.
The reverse can also happen. A player can hold a respectable Three Card Poker hand, correctly continue against the dealer, and still have no three-of-a-kind-or-better combination among all six cards. The main game may win while the bonus chip disappears.
This separation is one reason side bets feel psychologically confusing. The player remembers a “good round” or a “bad round” as one event, but the felt may actually contain three contracts with unrelated settlement logic. Read main-game edge versus side-bet edge if you want to separate them cleanly.
Paytable variation matters more than the game name
Six Card Bonus is not one fixed percentage across every casino. Regulators can authorize multiple schedules. Pennsylvania, for example, publishes several permitted Six Card Bonus paytables with changes to four of a kind, full house, flush, straight and three-of-a-kind payouts. Some versions also include special six-card royal awards.
That means “Six Card Bonus” identifies the wager family, not its exact expected return. Before comparing two tables, copy the entire schedule. A change from 50 to 1 to 100 to 1 on four of a kind helps, but a simultaneous reduction elsewhere can give some of that value back.
The correct method is to apply the same category probabilities to the exact posted payouts. The house edge calculator can help translate a known edge into dollars, but it cannot discover the right edge unless the paytable has already been analyzed correctly.
The side bet adds action without adding a decision
From an operations perspective, Six Card Bonus is attractive because it adds another wager without creating another strategic choice during the hand. The player places the chip before the deal. The dealer follows the normal card procedure, then evaluates an additional paytable at settlement.
That simplicity still creates control points:
- the side bet must be placed before betting closes;
- the dealer must use the exact cards specified by the rules;
- only the highest qualifying five-card hand is paid;
- the correct paytable must be visible and used;
- maximum payouts or aggregate limits, where applicable, must be handled under the local rules;
- the bonus must not be confused with Pair Plus, an Ante Bonus, or a progressive wager.
A rare premium hand can require supervisor verification because a single payout error is expensive. That operational reality is different from the mathematical question of whether the wager is good value.
What a $5 bonus does to session cost
Suppose the table uses the 15.28% example schedule and a player places a $5 Six Card Bonus on every round.
Expected loss per bonus = $5 × 0.1528 = $0.764
At 40 rounds per hour, if every round receives the bonus:
theoretical hourly bonus cost = 40 × $0.764 = $30.56
That number is not a promise about one hour. A side bet with rare high payouts has substantial variance, so a short session can finish far above or below expectation. The calculation simply shows how repeated optional action accumulates in the long run.
It also shows why adding the bonus casually can cost more than players expect. The chip is small, but it is repeated. Compare that effect with the real cost of a five-dollar side bet and side-bet variance.
How to read a Six Card Bonus table before betting
Ignore the jackpot first. Read from the bottom upward.
Check what minimum hand qualifies. Confirm whether three of a kind is the lowest paid result. Note the payouts for straight, flush and full house, because those occur far more often than a royal. Then check the premium awards and any special six-card royal condition. Finally, confirm whether the side bet remains live if the player folds the main hand; that is a rules question, not something to assume from another casino.
This reading order makes the wager less seductive and more understandable. The top prize tells you why the bet is marketed. The lower rows tell you much more about how the return is actually built.
The useful conclusion is paytable first, jackpot second
Six Card Bonus gives the player access to the best five-card hand among six cards, but the casino prices that privilege through the paytable. On the common 1,000/200/50/25/15/10/5 schedule analyzed above, only about 7.28% of six-card sets qualify and the house edge is about 15.28%.
Other schedules can be better or worse, so the percentage should never be copied blindly from one table to another. The durable method is to identify the exact rules, use the correct six-card category frequencies, weight every payout, and keep the result separate from the Three Card Poker main game. For the base game itself, continue with Three Card Poker odds and Pair Plus.