Definition
Loss Rate is a measure of how quickly a player is expected to lose their money, typically expressed as a dollar amount per hour ($/hr). It is calculated by multiplying the player’s average bet size, the number of bets per hour (speed of play), and the house edge of the game.
In context
If you play Blackjack at $25 per hand, and the dealer deals 60 hands per hour, your total “action” is $1,500 per hour. If the house edge is 0.5%, your “Loss Rate” is $1,500 multiplied by 0.005, which equals $7.50 per hour.
Why it matters
Loss rate is the most important metric for bankroll management. It tells a player how long their money will likely last. For the casino, the loss rate (often called “Theoretical” or “Theo”) is how we decide how much to give you in “comps” (free rooms, meals). If your loss rate is $50/hour, we might give you $15/hour back in perks.
Related terms
In detail
In the casino business, we don’t look at “wins” or “losses” on a single night. We look at the “Loss Rate.” This is the steady, predictable heartbeat of the casino’s profitability. If you understand your loss rate, you stop being a “gambler” and start being a “customer” who knows exactly what they are paying for their entertainment.
The Loss Rate Formula
To find your loss rate, you need three pieces of data:
- Average Bet: How much you put on the table or in the machine per round.
- Speed of Play: How many rounds you play per hour.
- House Edge: The mathematical advantage the casino has in that specific game.
Formula: (Average Bet) × (Bets per Hour) × (House Edge) = Hourly Loss Rate
Let’s look at two different players:
- Player A (The “Relaxed” Blackjack Player): $10 bet × 50 hands/hour × 0.5% edge = $2.50 per hour.
- Player B (The “Fast” Slot Player): $3.00 bet × 600 spins/hour × 10% edge = $180.00 per hour.
Even though Player A is betting on “expensive” green chips ($25) and Player B is playing “cheap” penny slots, Player B is losing money 72 times faster than Player A. This is the “no-spin” truth of the casino floor: the “cheap” games are often the most expensive to play.
Factors That Influence Loss Rate
As a shift manager, I watch these three variables constantly.
- Speed of Play: This is why we train dealers to be fast and why we have “Auto-Play” on slots. The more rounds per hour, the higher the loss rate. A “shorthanded” blackjack table (one player vs. the dealer) is a disaster for the player’s loss rate because the hands come much faster.
- Game Selection: Changing from a 3:2 Blackjack table to a 6:5 Blackjack table increases the house edge from 0.5% to nearly 2.0%. This quadruples your loss rate instantly, even if you don’t change your bet size.
- Side Bets: Side bets (like “Pair Plus” in Three Card Poker or “Insurance” in Blackjack) have massive house edges—often 5% to 15%. Adding these bets to your routine can double or triple your hourly loss rate.
Loss Rate vs. “The Hold”
Many people confuse loss rate with “The Hold.”
- Loss Rate is what happens in the “Long Run” (Theoretical).
- The Hold is what actually happened at a specific table tonight.
If a table had $100,000 in “Drop” (money put in the box) and the casino ended the night with $20,000 of it, the “Hold” is 20%. This might be much higher or lower than the “Loss Rate” because of variance. If a player gets lucky and wins big, the Hold might be negative, but the Loss Rate remains the same because the math hasn’t changed.
Using Loss Rate to Get Comps
The casino uses your loss rate to determine your value. We generally “rebate” about 20% to 30% of your hourly loss rate back to you in the form of comps. If your loss rate is $100/hour, you are “earning” about $25/hour in value (free food, points, etc.). If you are a smart player, you want to find games where your Actual Loss Rate is low, but the casino’s Perceived Loss Rate for you is high.
For example, a slow, methodical Blackjack player who uses perfect “Basic Strategy” has a very low actual loss rate. But the casino’s computer system might be programmed to assume a higher “average” house edge for all players. This is the “sweet spot” of casino loyalty programs: getting a $50 steak dinner for a session that only “cost” you $10 in mathematical expectation.
The Bottom Line
Your bankroll is a “gas tank,” and the loss rate is your “miles per gallon.” If you have $500, and your loss rate is $50/hour, you have 10 hours of “fuel.” If you switch to a high-speed slot machine with a $200/hour loss rate, your “tank” will be empty in two and a half hours. Know your rate, and you’ll never be surprised by an empty wallet before dinner.