Definition
Win Per Day (WPD) is a performance metric used by casino operators to measure the average daily profit generated by a specific game, table, or machine. It is calculated by taking the total “Net Win” (Total Bets minus Total Payouts) over a period and dividing it by the number of days in that period.
In context
A Slot Director might notice that a new “Buffalo” machine has a Win Per Day of $450, while an older mechanical slot is only generating $120. Based on this WPD data, the director may decide to replace the older machine with more “Buffalo” units to maximize floor revenue.
Why it matters
WPD is the “North Star” for casino floor optimization. It helps management decide which games deserve the “prime real estate” near the entrances and which games should be retired. For the casino, every square foot of the floor has a “cost,” and WPD tells them if that square foot is paying its rent.
Related terms
In detail
If you ever wonder why your favorite obscure slot machine was removed and replaced by yet another “Wheel of Fortune” clone, the answer is Win Per Day. In the casino business, we don’t look at “popularity” in terms of how many people like a game; we look at “productivity” in terms of dollars generated per 24-hour cycle.
The Calculation
The formula is simple: Total Net Win / Number of Days = Win Per Day.
However, the “Net Win” can be deceptive. In the slot department, Net Win is the “Metered Win” (what the computer says was kept). In the table games department, it is the “Drop” (cash in the box) minus the “Fills” (chips added to the table) plus the “Credits” (chips taken away).
Why “Average” Matters
We rarely look at WPD for a single day. A single day is too “volatile.” A player might hit a $10,000 jackpot on a Monday, making the WPD for that machine negative $9,000. That doesn’t mean the machine is bad. We typically look at 30-day, 90-day, and 12-year averages. This smooths out the “variance swings” and shows the true earning power of the game.
WPD vs. The “House Average”
Casino managers use WPD as a benchmark. Every casino has a “House Average WPD.”
- If the house average is $250…
- And a machine is doing $400, it’s a “star.”
- If it’s doing $150, it’s a “dog.”
When a machine is a “dog,” the Slot Manager has a few choices:
- Move it: Maybe the game is fine, but the location is bad (e.g., in a dark corner).
- Adjust it: Change the “Par” (the house edge) if the regulations allow it.
- Convert it: Change the “theme” (the software) to a more popular game.
- Remove it: Sell the machine or put it in the warehouse.
Benchmarking Table Games
For table games, WPD is more complex. A $100 minimum Blackjack table might have a higher WPD than a $10 table, even if it has fewer players. We calculate the “Win Per Table Per Day.” This helps us decide staffing levels. If the WPD for the graveyard shift (2:00 AM to 10:00 AM) is consistently lower than the cost of the dealers’ wages and the lights, we might close that section of the pit during those hours.
The “Cost of Space”
Every square foot of a casino floor is incredibly expensive. You have to account for property taxes, electricity, security, surveillance, and marketing. A “Win Per Day” of $200 might sound like a lot, but if the “fixed cost” of maintaining that spot is $180, the casino is only netting $20.
This is why you see “clusters” of machines. It’s more efficient to maintain a bank of 12 machines than 12 scattered machines. WPD helps us determine if the “Cluster” is performing better than the “Standalone.”
The Player’s Takeaway
While WPD is an operational term, it affects you as a player. The games with the highest Win Per Day are usually the ones with the highest house edge or the fastest “speed of play.” If you see a game that is everywhere in the casino, it’s likely because it has a high WPD. If you want a better chance of winning, you might actually want to look for the “dogs”—the games that the casino is thinking about removing—as they often have lower volatility or a better “return to player” that keeps the WPD low.