AP Glossary
WhatIsSessionBankroll?
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.
Why It Matters
Why this matters for advantage play
Session bankroll is the firewall between a normal losing session and a bankroll-killing tilt event. Cap it before you sit down. Once the session bankroll is gone, the session is over — even if the play 'should' still be +EV.
Bankroll Management GuideCross-Reference
Related terms
Bankroll
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.
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.
Session
A single play period on one machine. AP sessions are typically short — play only while the machine is +EV, then leave. Long sessions grinding through -EV territory is gambling, not advantage play.
Walk / Walk Away
The discipline of leaving a machine or a casino when conditions are not favorable. Walking away from -EV situations — even when you're 'due' for a win — is the single most important habit in advantage play.
Frequently Asked
Common questions about session bankroll
A common rule is 5–10% of total bankroll per session, scaled to the bet level required for the play. The exact sizing depends on the volatility of the game.
Discouraged. Refilling defeats the firewall purpose. If the play is genuinely still +EV, leaving and coming back later with a fresh session bankroll is preferable.
That's the goal. The remaining session bankroll plus the bonus value is your session result. Most well-bounded +EV plays leave session bankroll intact.
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