Wong Halves
ExpertPro
Wong Halves is a level-three balanced count from Stanford Wong’s Professional Blackjack. Half-point values, not a hybrid of other systems.
- Level
- 3
- BC
- 99%
- PE
- 56%
- IC
- 72%
| A | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
|---|---|---|---|---|---|---|---|---|---|
| -1 | 0.5 | 1 | 1 | 1.5 | 1 | 0.5 | 0 | -0.5 | -1 |
Systems
Wong Halves
Stanford Wong’s fractional level-three count from Professional Blackjack. Balanced. Not a hybrid of other systems.
The values
How the values work
Wong Halves is from Stanford Wong’s Professional Blackjack. It is a single balanced count that uses half-point values for extra betting correlation. It is not a mix of two systems. Values: 5 is +1.5, 2 and 7 are +0.5, 9 is −0.5, tens and aces are −1, 8 is 0.
+1.5
5
The heaviest plus.
+1
3, 4, 6
Full plus cards.
+0.5
2, 7
Half pluses.
0
8
Neutral.
−0.5
9
Half minus.
−1
10, J, Q, K, A
Tens and aces.
The math
Running count, then true count
Start at zero
Balanced. Start at 0. The halves still cancel over a full deck. Some players double every value (the “whole halves” shortcut) and divide the true count by two.
True count is running count divided by remaining decks. Keep the fractions or use the doubled map consistently.
Efficiency
Why the numbers look like that
The fractions exist to push betting correlation. PE stays in Hi-Lo territory.
BC
99%
Betting correlation
Betting correlation of 99%.
PE
56%
Playing efficiency
Playing efficiency of 56%.
IC
72%
Insurance correlation
Insurance correlation of 72%.
In the app
Practice Wong Halves on iPhone
Wong Halves is a Pro system. Practice includes 0.5, 1.5, and −0.5 on the extra buttons.
Memorize
Drill the Wong Halves values until every rank is automatic.
Running Count
Add every card as it comes off the shoe. Start at 0. A full deck returns to 0.
True Count
Divide the running count by remaining decks. Betting and deviations use this number.
Keep exploring
More from the app
Features
Practice, play, and track
Counting drills, strategy, session logs, live teams, and analytics — in one iPhone app.
Read more →Training
Modes that match how you learn
Running count, true count, speed drills, swipe practice, dealt-out shoes, and a full table.
Read more →Pro Mode
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Read more →Support
Help and FAQs
Email us for bugs and billing, or browse common questions about practice, Pro Mode, sessions, and teams.
Read more →Unlock Wong Halves with Pro.
Pro Mode adds Wong Halves. Fractional values, same Memorize and True Count drills.
