Wong's advice to bet the minimum until the last ten hands is good advice for a beginner. But if you really want to take your game to the next level you have to abandon this strategy in some formats and against some collections of opponents.
One mathematical reason for the minimum bet strategy is that blackjack is a negative expectation game. However many tournaments today pay 2:1 on blackjacks, making it a positive expectation game. By betting the minimum in a positive expectation game you are making it more likely that you will be behind when there are only few hands left in a round.
The other mathematical reason for the minimum bet strategy is that each bet lost hurts your chances for success more than each bet won does. That's because there is no upper limit to your bankroll, but there is a lower limit - zero. In a tournament you can't reach into your pocket for money to reload your chip stack like you can in a cash game. The other reason losses hurt more than wins help is because the losses cost you double later when you have to go all in. If you lose 100 out of your 500 stack you only have 400 left and an all in can only bring you to 800. If you lose 10 out of your 500 stack the all with your remaining stack can bring you up to 980. The 90 difference in the lost bets results in a 180 difference in the results of the subsequent successful all ins. However many tournaments have a max bet that is some fraction of the starting bankroll. In these tournaments this effect does not exist.
There are other mathematical principles in effect in blackjack that Wong's minimum bet advice does not take advantage of. One effect is variance. It protects you from the negative swings but fails to exploit positive swings. Another principle is correlation of player outcomes in a hand, from which the minimum bet strategy is almost totally divorced. You could instead employ a strategy that combines these two mathematical factors to create an advantage. In blackjack your bankroll swings up and down, with a long-term downward trend if you are flat betting. The more you bet, the faster you lose in the long run. But in a blackjack tournament round you are interested in the short term. Most times there will be an early uptick in your bankroll that makes it higher than what you started with. If you bet bigger than your opponents, you will likely have the lead when your bankroll sees this early uptick. You can then exploit the mathematical principle of correlation and start betting roughly the same as your opponents to protect your lead.
You will find that on many tables one big bettor gets lucky and builds a big stack. This usually happens as the result of the dealer busting a lot of hands. In a format in which two or more players will advance, you have the second or third advancing position as a safety valve. However in a format where only one player advances from the table, you must catch up with this player. If you had been betting bigger in the early and middle hands of the round, you would have profited from the same busted hands that this lucky player did and would not be as far behind as if you bet minimum.
The game has matured since Wong published his masterpiece. Most regulars these days bet somewhat larger than the minimum while remaining mindful of bankroll management. In tables full of these players you will find yourself consistently behind some of them in the late hands of a round. They know to bet bigger in the late hands, correlating your catch-up attempts. It is much better to be the one making correlation bets than it is to be the one making catch-up bets.
Some conditions make aggression more profitable than the minimum bet strategy. Here are some conditions to look for:
- 2:1 payment on blackjacks
- Less hands in a round
- Only one advances from a table
- Maximum bet is a fraction of starting bankroll
- Opponents who make medium bets and manage their bankrolls