AP Glossary
WhatIsBankroll?
The total money a player has allocated specifically for advantage play sessions. Proper bankroll management ensures you can survive the natural variance of +EV play without going broke.
Why It Matters
Why this matters for advantage play
Even pure +EV plays can produce losing streaks of dozens of sessions. A small edge magnified by high variance means an undercapitalized AP player can go broke on perfectly correct plays. Bankroll is the buffer that converts a long-term edge into actual realized profit.
Bankroll Management GuideCross-Reference
Related terms
Session Bankroll
The amount allocated for a single playing session, separate from total bankroll. Session bankroll limits protect the overall bankroll from a single bad variance run.
Variance
The natural fluctuation of actual results around the expected value. High variance means bigger swings between wins and losses. Even +EV plays can produce losing sessions due to variance — bankroll management accounts for this.
Volatility
How much results vary from the expected return in the short term. High volatility slots have infrequent but large payouts; low volatility slots pay smaller amounts more often. For AP, higher volatility means you need a larger bankroll to survive the swings.
EV (Expected Value)
The mathematical average outcome of a bet calculated over infinite repetitions. Positive EV (+EV) means the play is profitable long-term; negative EV (-EV) means the house has the edge. AP players only take +EV plays.
Frequently Asked
Common questions about bankroll
A common rule of thumb is 200–500 max bets for low-volatility AP and 1,000+ max bets for high-volatility plays. The practical floor is whatever amount lets you sleep through a five-session losing streak without changing your strategy.
Yes. A dedicated bankroll account or envelope makes it easy to track results, prevents lifestyle creep from absorbing winnings, and removes the temptation to chase losses with rent money.
Full Kelly is rarely correct for slots because variance is extreme and edge estimates are imprecise. Most experienced advantage players use a fractional Kelly (quarter or eighth) or simpler max-bet rules tied to bankroll size.
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