Nine-Count Blackjack Strategy: Full Review

The Nine-Count Blackjack Strategy makes unusually strong claims. Its creator, Martin J. Silverthorne, said players could start with a small bankroll, win more than 90% of their games and generate substantial hourly profits by combining a modified blackjack playing strategy with a nine-level betting progression.

We did not want to judge those claims from theory alone. We played 332 blackjack hands across 16 separate sessions using the system and recorded every win, loss, push, betting level and session result.

The result is more interesting than simply saying the strategy lost.

We won 11 of the 16 sessions, giving the system a 68.75% session win rate. Yet we still finished $172.50 down overall.

That is the central problem with Nine-Count Blackjack: it can make winning sessions much more common than losing sessions while allowing the losing sessions to cost far more than the winners make.

What Is the Nine-Count Blackjack Strategy?

The Nine-Count system comes from Martin J. Silverthorne’s book The Nine-Count Blackjack Strategy. It combines two separate ideas: a blackjack playing strategy and a betting progression.

The playing strategy is based loosely on conventional blackjack basic strategy, with some different doubling and pair-splitting instructions. The betting system then moves through nine levels when the required sequence of wins does not arrive.

The book’s bigger claim is that a hand immediately following a win is unusually favorable. Silverthorne calls this the “Profit Advantage Bet” and uses it as the reason to parlay a winning wager onto the following hand.

How Does the Nine-Count Betting System Work?

The system begins with three $5 levels before increasing the stake as losses accumulate.

If the base bet loses, you move to the next level. If it wins, the system tells you to parlay the return into the following hand.

For example, if you win a $10 base bet, the next wager becomes $20. Win that second hand as well and the two consecutive wins are intended to recover earlier progression losses. You then return to level one.

If the parlay loses, you continue through the levels until another successful two-win sequence resets the progression or level nine is lost.

What Is the “Profit Advantage Bet”?

This is the claim on which the betting system really depends.

Silverthorne reported that while players might win about 47.5% of resolved blackjack hands overall, his simulations produced a roughly 48.5% win rate on hands immediately following a win. He therefore treated the second hand as a better betting opportunity and recommended increasing the stake on it.

There are two problems with jumping from that observation to a profitable betting system.

First, a higher observed win percentage in a simulation does not automatically prove that the previous win caused the next hand to become more favorable. Blackjack hands dealt from a shoe are not perfectly independent because every card changes the remaining deck, but the previous result by itself does not tell you enough about that composition to create a reliable betting edge.

A card counter uses information about which ranks have been removed. “I won the last hand” is much weaker information.

Does a 48.5% Hand Win Rate Mean You Have an Advantage?

No. Blackjack expected value cannot be determined from hand win percentage alone.

Blackjacks can pay more than an ordinary win. Doubles and splits put different amounts of money at risk. Some rounds push. A player can therefore win fewer than half of resolved hands while still playing a game with a very small house edge.

Under one common six-deck ruleset analysed by Wizard of Odds, about 43.34% of rounds are net wins, 47.88% are losses and 8.78% push. Once pushes are removed, the player wins about 47.51% of decided rounds.

So even if a second-hand win rate really were 48.5%, the next question would be whether the expected return per dollar wagered had become positive. Nine-Count does not establish that.

How Did We Test Nine-Count Blackjack?

We tested the system over 16 sessions containing 332 hands in total. Eight sessions were played at two online casinos, using European Blackjack.

We followed the Nine-Count progression and its playing instructions as closely as the source material allowed. Where the book left an instruction unclear, we documented how we interpreted it rather than silently filling the gap with conventional strategy.

For the experiment, a winning “game” or session was defined as reaching roughly $50 profit. A losing session occurred when the progression reached and lost level nine.

This definition is important because the headline win rate refers to sessions, not individual blackjack hands.

What Happened Over 332 Hands?

The hand results were remarkably close to the ordinary blackjack figure the strategy itself started from. Excluding 33 pushes, we won 142 of 299 resolved hands, or 47.49%.

That is almost identical to the roughly 47.5% resolved-hand win rate expected in common blackjack simulations.

How Did We Win 11 Sessions and Still Lose Money?

Because the winning and losing sessions were not the same size.

Our 11 winning sessions produced $642.50 in combined profit, an average of about $58.41 per win.

The five losing sessions cost $815 combined, or an average of $163 per loss.

So one average losing session erased almost 2.8 average winning sessions.

This is the central mathematical feature hidden by the session win percentage. The system is built to collect relatively frequent modest gains while allowing an unsuccessful progression to create a much larger loss.

What Did Each Session Produce?

Why Is the 68.75% Win Rate Misleading?

Because a “winning session” was defined as reaching roughly $50 profit, while a failed progression was allowed to continue until level nine.

The two outcomes therefore had very different boundaries.

Most successful sessions stopped once a fairly modest amount had been won. Losing sessions were allowed to continue much farther into negative territory before they stopped.

This makes a high session win percentage entirely compatible with an overall loss.

Our results are a particularly clean example: 11 wins versus five losses sounds excellent until you notice that the average loss was almost three times the average win.

What Session Win Rate Would We Have Needed to Break Even?

Using the average size of our winning and losing sessions, we would have needed to win roughly three quarters of all sessions just to break even.

Our average winning session made about $58.41, while the average losing session cost $163. At those values, a 50%, 60% or even 68.75% session win rate is not enough.

This is why judging a gambling system by “how often it wins” can be deeply misleading. You also need to know how much is won when it works and how much is lost when it fails.

Did Our Hand Results Support the Profit Advantage Claim?

Not in any useful sense.

Across the complete test, our resolved-hand win percentage was 47.49%. That is almost exactly in line with the conventional blackjack figure of roughly 47.5% for wins once pushes are excluded under common rules.

The Nine-Count progression did not produce an obvious transformation in the basic win-loss pattern.

More importantly, even a small increase in the frequency of back-to-back wins would need to be large enough to overcome the cost created by the progression itself. An observed difference of one percentage point in one conditional statistic is not enough to establish that.

Does Winning One Blackjack Hand Make the Next More Likely to Win?

Not simply because the previous hand won.

Blackjack is dealt from a finite shoe, so removing cards does change the probabilities of future hands. This is the basis of legitimate card counting.

But a win can happen through many different card combinations. You might win because you received a blackjack, because the dealer busted, because you doubled an 11, or because you stood on 17 and the dealer finished on 16 before busting.

The word “win” throws away most of the card-composition information that would actually matter.

If the edge comes from the remaining cards, you need to track the cards. Tracking whether the previous hand won is not the same thing.

Is the Nine-Count Strategy a Form of Card Counting?

No. Its betting progression is based on previous betting results rather than a running estimate of the cards remaining in the shoe.

A card counter increases or decreases wagers because the composition of the remaining deck changes the expected value of future hands. Nine-Count increases exposure because a previous bet won or because the progression has reached a particular level.

Those are different mechanisms.

Does the Nine-Count Playing Strategy Improve on Basic Strategy?

We found no convincing reason to replace mathematically derived basic strategy with the Nine-Count deviations.

Blackjack basic strategy changes with the exact table rules, including number of decks, whether the dealer hits soft 17, when doubling is allowed, whether doubling after splits is permitted and how dealer blackjack affects doubled or split wagers.

For example, the European strategy table we originally used came from Wizard of Odds. Under the specific six-deck European rules analysed there, correct basic strategy produces a house edge of about 0.62%.

A strategy that changes individual hit, stand, double or split decisions therefore needs to demonstrate that its alternative action has a higher expected value under the same rules. A betting progression cannot compensate for making a worse playing decision.

Why Does the Parlay Make Nine-Count Feel Effective?

Because two consecutive wins can repair several earlier losses in one step.

That produces memorable recoveries. You can fall behind, hit a win, parlay the return, win again and suddenly reset the progression with a profit.

But the second wager is also larger. When the parlay loses, the previous win disappears and the progression continues deeper into the nine levels.

The system therefore trades many satisfying recoveries against less frequent but increasingly expensive failures.

Is Nine-Count Just Another Betting Progression?

Mostly, yes.

It is more complicated than Martingale because stakes do not simply double after every loss, and it introduces a parlay after wins. But the fundamental mechanism is familiar: previous results determine how much money is risked next.

Unless the next wager has genuinely better expected value, changing its size only changes the distribution of bankroll outcomes.

Can a $60 Bankroll Really Support the System?

Our test makes that claim difficult to reconcile with the progression itself.

The later levels use $20 and $40 base bets, and a winning base bet can create a parlay twice that size. Splits and doubles can require additional money on the same hand.

So the amount required to follow the strategy properly can exceed the simple headline bankroll very quickly.

A bankroll is not just the size of the first bet. It needs to cover the largest combination of progression stake, doubles and splits that the strategy might require before a reset.

Does Nine-Count Produce a 91.1% Win Rate?

Our test did not come close to supporting that figure.

We won 11 of 16 sessions, or 68.75%. That is still a high percentage of winning sessions, but it came with an overall loss.

The larger problem is that “91.1% win rate” is incomplete unless we know exactly what counts as a win, how a game ends, the average value of a win, the average size of a loss and the total amount wagered.

A system that wins nine small sessions and loses one enormous session can have a 90% session win rate and still lose money.

Can You Judge a Blackjack System From 332 Hands?

Not conclusively.

Three hundred and thirty-two hands are nowhere near enough to establish the precise long-run return of a blackjack betting system. Short-term variance remains large.

Our test therefore does not prove that the system must lose by exactly $172.50 every 332 hands, nor would a $172.50 profit have proved that it worked.

What the test does show very clearly is how the progression distributes outcomes. We observed frequent winning sessions alongside much larger losing ones, which is exactly the risk that a session win percentage can conceal.

What Would Proper Evidence for Nine-Count Look Like?

The system needs evidence for two separate claims.

First, any changes to blackjack playing strategy need to outperform established basic strategy under a defined ruleset. That can be tested by comparing the expected value of each decision mathematically.

Second, the “Profit Advantage Bet” needs to show that betting more after a win produces a positive expected return, not merely a slightly different raw hand win percentage in one simulation.

A large simulation could test that directly. It would need to specify the game rules, shuffle method, deck penetration, basic strategy, treatment of splits and doubles, and total money wagered.

Without that evidence, the progression is taking a conventional negative-expectation blackjack game and rearranging when the larger wagers occur.

What Did Our Nine-Count Test Actually Show?

Does the Nine-Count Blackjack Strategy Work?

Our test found no evidence that Nine-Count creates a mathematical advantage over blackjack.

It did succeed at producing frequent winning sessions. We finished ahead in almost seven out of ten of the sessions we played. If we looked only at that number, the system would appear impressive.

But the money tells the more important story. Winning sessions averaged about $58, while losing sessions averaged $163. Five losses were enough to overwhelm 11 wins and leave us $172.50 down.

That does not prove what every future 332-hand sample will look like. It reveals the structural problem with judging a betting progression by the percentage of sessions it wins.

Nine-Count can increase the frequency of modest winning sessions without improving blackjack expected value. Our own test showed exactly why those are not the same thing.