Variance is the mathematical reality that separates poker from games of pure skill. Understanding variance is essential for maintaining your sanity and your bankroll.
What Is Variance?
Variance is the natural fluctuation in results caused by the random distribution of cards. Even with perfect play, you’ll experience winning and losing streaks.
Short Term vs Long Term
In the short term, variance dominates. Over 1,000 hands, a winning player can easily be a loser. Over 100,000+ hands, skill dominates variance.
How Big Is Variance?
A solid winning player at NL10 with a 5 BB/100 win rate can easily have a 20,000-hand downswing. This is normal, not a sign that you’re playing badly.
Dealing With Downswings
Accept that downswings are inevitable. Don’t change your strategy during a downswing unless you identify specific leaks through analysis.
The Danger of Results-Oriented Thinking
Judging your play by results rather than process is the biggest mental trap in poker. A good decision can have a bad outcome. Focus on the quality of your decisions, not the results.
Variance and Bankroll
Your bankroll is your buffer against variance. The higher the variance of your format (tournaments > cash), the more buy-ins you need.
When to Worry
Worry when your results deviate significantly from expectations over a large sample (50,000+ hands). That signals a strategy problem, not variance.
Emotional Management
Develop techniques for handling variance emotionally: meditation, exercise, breaks between sessions, and regular review of your play.
