Look at the first chart, titled "Half-Kelly 10K Starting Bank-Downswing." This chart shows your ideal bets when you want to play at the half-Kelly level of risk, starting with a $10,000 bankroll, betting one, two, or three simultaneous hands. This chart shows what happens to your ideal bets when your bankroll is diminishing, as your bets go down as your bankroll decreases from $10,000 to $9,000 to $8,000 and so on. All bets are rounded to the nearest $10 increment, though this is not necessarily the most practical bet when playing blackjack. If the chart shows that your ideal bet is $70 or $80, you might want to just bet three green chips ($75) for convenience. This will not have any drastic effect on your overall fluctuation or results.
Example: If my $10K starting bank has gone down to $8K due to negative flux, and my true edge tells me that I have a 2 1/2% advantage after deducting the house edge off the top, then according to the chart I would ideally place one hand of $80, two $60 hands, or three $40 hands. If you can spot these entries in the chart, then that's all there is to it. You may find that in some instances the "ideal" bets for two or three hands are the same, which is a result of rounding to the nearest $10. In fact, the ideal two-hand bet will be somewhat greater than the three-hand bet. But don't worry about over-betting—because we are betting only at the half-Kelly level, betting slightly more than the ideal amount isn't at all significant. We have already largely decreased our flux by not betting anywhere near full-Kelly.
The second chart shows how your bets increase when your $10K starting bank is on the upswing. If you cut all chart entries in half, note also how impractical it is for a player on a $10K bank to minimize his risk by betting at the quarter-Kelly level, especially if his starting bank goes into a downswing. The bet sizes are so small that it is difficult to get a substantial enough win rate per hour to make your playing worth the effort.
At half-Kelly with this $10K bankroll, the player will assume more risk, and greater fluctuations, but his hourly rate may be high enough to justify his time and effort at the tables.
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