Calculation Methodology
SLOT STAT describes slot behavior based on real gaming sessions, rather than theoretical characteristics provided by providers.
No slot modeling or passport parameters as the only source of truth. We analyze the actual results of the game and build statistics based on them.
SLOT STAT does not affect the operation of casinos and game providers. Random outcome generation mechanisms are not used or modified. SLOT STAT’s calculation methodology and the way statistics are presented do not depend on casinos and providers. By visiting the website, you agree to the Privacy Policy.
How the Data is Formed
Indicators are aggregated by observable gaming sessions across five time horizons:
1, 7, 30, 90, and 180 days
Each session is a separate set of game spins with fixed player behavior within the observation.
Only actual balance changes during the game are recorded:
Important about Interpretation
Volatility does not change RTP as a mathematical expectation, but determines how strongly the results deviate from it in real gameplay.
SLOT STAT Key Metrics
SRP (Statistical Return Percentage)
SRP shows the actual return percentage over the selected observation period.
SRP = (sum of all wins for the period / sum of all bets) × 100%
This metric shows how much is returned to players on average in real sessions. Deviations from the theoretical RTP are possible in both directions because SRP is based on a finite sample of data.
Important: SRP describes the slot’s behavior that has already occurred, not future results.
Hit Rate
Hit Rate is the frequency of winning spins.
It is calculated as follows: divide the number of winning spins by the total number of spins and multiply by 100. The metric shows how often the slot pays. A high Hit Rate means frequent wins and more even gameplay. A low Hit Rate results in rare wins and longer empty spin sequences.
Median Volatility
Median Volatility is a key metric of result dispersion. The calculation is performed in two steps:
Median Volatility = median(σ₁, σ₂, …, σₙ)
This method is less dependent on rare extreme wins and anomalous bonus sessions, therefore it provides a stable estimate of the actual behavior of the slot.
Median Max Win
Median Max Win is the median value of the maximum win across sessions.
Not the absolute maximum, but the typical win ceiling that the slot shows in most sessions. The metric reflects the absence of influence from rare extreme wins, the stable level of large wins, and the actual, rather than one-off, potential of the slot.
Average Win
Average Win is the average win size across all winning spins.
It shows the structure of payouts within the game: whether small wins prevail or there is a shift toward larger payouts. It is used to assess the density of the monetary flow in the slot.
Multiplier Distribution
The multiplier distribution shows which win levels occur more often:
The share of each multiplier is calculated from the total number of winning events. This distribution shows how even the return structure is, where the main part of the payouts is formed, and how much the slot depends on rare large multipliers.
How All Metrics Are Connected
Together, SLOT STAT metrics form a complete picture of slot behavior.
SRP →
is responsible for the final actual return
Hit Rate
→ shows the frequency of wins
Median Volatility
→ reflects dispersion and risk
Median Max Win
→ indicates the typical maximum win
Average Win
→ describes the payout structure
Multiplier distribution
→ reveals the shape of the win distribution
These indicators are not isolated: together they describe the character of the game, not only its result.
How to read the Slot Table in SLOT STAT (User Guide)
The SLOT STAT table is a summary representation of the slot’s behavior over the selected period. The logic is simple:
Important: No metric should be interpreted separately. A correct assessment of a slot is always based on their combination.
How to Read Slot Behavior
In practice, slots can be described through behavioral profiles.
This way, you can quickly understand the style of gameplay without manually analyzing all the numbers.
Important Limitations
SLOT STAT does not affect the generation of game results, does not control RTP, SRP or slot mechanics, and is not a tool for predicting wins.
The statistics describe only results that have already occurred and their distribution over time.
The data is provided free of charge. We are not responsible for the results of its use. You accept all risks and consequences associated with the analysis and application of the information.