Calculation methodology
SLOT STAT is an analytics platform that tracks how slots actually perform based on real play sessions — not the theoretical numbers providers hand out.
We don’t run simulations or trust provider specs blindly. Our stats are built on actual results — nothing else.
SLOT STAT operates independently — we have no ties to casinos or game providers, and we don’t interfere with RNG systems in any way. By the same token, neither casinos nor providers have any influence over our methodology or how we present our findings. By using this site, you agree to our Privacy Policy.
How the data is collected
All metrics are calculated from observed play sessions and aggregated across multiple time windows:
1, 7, 30, 90, and 180 days
Each session is a standalone set of spins with consistent player behavior tracked throughout.
We only record actual balance changes during gameplay, including:
A Note on Interpretation
Volatility doesn’t change RTP as a mathematical expectation — but it determines how far real results can swing from it during actual play.
SLOT STAT Key Metrics
SRP (Statistical Return Percentage)
SRP is the actual return percentage observed over a selected time period. Calculated as:
SRP = (total winnings over the period / total bets placed) × 100%
It shows how much, on average, players got back across real sessions.
SRP can run above or below the theoretical RTP — that’s expected, since it’s based on a finite data sample. It describes how a slot has behaved, not how it will behave.
Hit Rate
Hit Rate is how often a spin results in a win. Calculated as:
Hit Rate = (winning spins / total spins) × 100%
It reflects how consistently wins show up during gameplay.
High Hit Rate → frequent wins, smoother session feel
Low Hit Rate → longer dry spells between wins
Median Volatility
Median Volatility is the core metric for measuring how spread out results are. It’s calculated in two steps:
Median Volatility = median(σ₁, σ₂, …, σₙ)
This approach:
Reduces the impact of rare, outsized wins
Filters out skew from anomalous bonus sessions
Gives a stable, reliable read on how the slot actually behaves
Median Max Win
Median Max Win is the median of the highest win recorded per session.
It’s not the all-time biggest win — it’s the typical ceiling a slot hits across most sessions. This metric reflects:
Average Win
Average Win is the mean payout across all winning spins.
It reveals the payout structure of the game — whether it’s dominated by small, frequent wins or skewed toward larger payouts.
It’s a useful gauge of how money flows through a slot over time.
Multiplier Distribution
Multiplier distribution shows how often different win levels actually occur:
Each level is expressed as a share of all winning events. It tells you:
How balanced the payout structure is
Where the bulk of returns actually come from
How dependent the slot is on rare, high-multiplier hits
How the metrics work together
Taken together, SLOT STAT metrics give you a complete picture of how a slot behaves:
SRP
→ overall actual return
Hit Rate
→ how often it pays
Median Volatility
→ spread and risk
Median Max Win
→ typical win ceiling
Average Win
→ payout structure
Multiplier Distribution
→ shape of the payout curve
These aren’t standalone numbers — together, they describe how a slot plays, not just what it pays.
How to read a slot table in SLOT STAT — The User Guide
The SLOT STAT slot table is a snapshot of how a slot has performed over a selected period. The logic is straightforward:
One thing to keep in mind: no single metric tells the full story. A proper read of any slot always comes from looking at the combination.
How to read a Slot’s Behavior
In practice, slots tend to fall into a few recognizable patterns:
These profiles help you get a quick sense of how a slot plays without crunching every number manually.
Important Limitations
SLOT STAT:
Has no influence over how game results are generated
Does not control RTP, SRP, or slot mechanics in any way
Is not a tool for predicting wins
Every spin is an independent random event. Our statistics describe outcomes that have already happened — nothing more.
All stats are free to access. We are not responsible for how this data is used. Any decisions made based on our information are yours to make.