Poker Bankroll Management

Why Variance Destroys Under-Bankrolled Players

Poker has high variance — even with a 5% edge over opponents, losing streaks of 30, 50, or even 100 buy-ins are possible. Without a deep bankroll, these swings result in going broke before your edge shows.

Risk of ruin: The probability of going broke is a function of your edge, variance, and bankroll size. A 20 buy-in bankroll at No-Limit Hold'em gives you meaningful risk of ruin even with a strong edge. A 50 buy-in bankroll reduces this dramatically.

Professional players do not play in games where a normal downswing could end their poker career. Recreational players often experience more variance than expected because they underestimate how long runs of bad luck can last.

Recommended Bankroll by Game Type

Different poker formats have different variance profiles. Higher variance formats require larger bankrolls relative to buy-in.

Moving Up and Down in Stakes

Moving up: Only move up to a higher stake when you have the full recommended bankroll for that stake. A downswing at a higher stake will quickly deplete a marginal bankroll.

Moving down (stop-loss rule): Define in advance when you will drop down a stake. A common rule: if your bankroll drops below the conservative minimum for your current stake, move down immediately — without ego.

Stop-loss example: Playing £0.25/£0.50 NL cash (£50 buy-in). Conservative bankroll: 40 buy-ins = £2,000. If bankroll drops to £1,500 (30 buy-ins), move down to £0.10/£0.25.

The most common bankroll management mistake is moving up aggressively after a heater (winning streak) and refusing to move back down after losses begin. Treat bankroll rules as non-negotiable.

The Mental Side of Bankroll Management

Bankroll management is partly psychological discipline, not just mathematics.

Never play scared money: Money you cannot afford to lose affects decisions. If losing a session would cause real financial stress, you are playing for stakes too high for your situation — regardless of technical bankroll size.

Separate poker bankroll from living expenses: Your poker bankroll should be money completely separate from rent, bills, and daily life. Mixing them guarantees tilt when variance runs bad.

Tilt is the bankroll killer: Chasing losses by moving up stakes or playing more hands while losing is the primary cause of bankroll destruction for otherwise skilled players. Define session stop-loss rules and leave the table when triggered.

Expected Value and Winrate

Long-term profitability requires a positive expected value (EV) — your winrate must be positive over a large sample.

Measuring winrate: In cash games, winrate is measured in bb/100 hands (big blinds won per 100 hands played).
• Break-even: 0 bb/100
• Solid recreational winner: 3-6 bb/100
• Strong winning player: 8-12 bb/100
• Elite player: 15+ bb/100

At 100 hands/hour, a 5 bb/100 winrate at £0.25/£0.50 NL (£0.50 BB) earns £2.50/hour before rakeback. Volume matters — more hands reduce variance relative to your sample.

Tournament ROI: Measured as return on investment across buy-ins. 10% ROI means averaging 10% profit per tournament entered. Tournaments require massive sample sizes (1,000+ tournaments) to accurately measure true ROI.