Clean Sheet Probability Calculator
Using a Poisson model, the chance of conceding no goals falls as the expected goals against rises. Enter the expected goals a team faces.
Calculate clean sheet probability
Fill in the fields and select Calculate.
What you'll need
To use the clean sheet probability calculator, have these figures ready:
- Expected goals against — for example, 1.2.
The calculator then returns the clean sheet probability the moment you press calculate.
How it works
Clean sheet probability = e^(−expected goals against) × 100
You enter the expected goals against, and the calculator returns the clean sheet probability using the formula above.
When to Use
Use the clean sheet probability calculator to estimate the likelihood of a team keeping a clean sheet based on Poisson distribution and the expected goals conceded. It is used by football analysts, bettors, and fantasy football managers to predict defensive outcomes. Clean sheet probability helps evaluate defensive quality over a season.
What the result tells you
The clean sheet probability falls quickly as the goals a defence is expected to concede rises, which is why even strong sides keep clean sheets in only a minority of games. The figure assumes goals arrive at random around the expected number, so it is a guide to how shut out a defence is likely to be rather than a certainty for any single match.
Benchmarks & Interpretation
Here is how typical results are categorized and interpreted:
| Value / Range | Rating | Description |
|---|---|---|
| Below 20% | Unlikely | The defence is expected to concede. Typical when facing a strong attacking team. |
| 20 – 35% | Possible | A realistic chance of a clean sheet if the defence performs well. |
| 35 – 50% | Good chance | The team's defence is strong enough to keep the opposition out roughly one in three matches. |
| 50%+ | Likely | A dominant defensive performance is expected. The team is heavily favoured defensively. |
Pro Tips & Advice
To improve clean sheet probability, focus on reducing the quality of chances conceded rather than just the quantity. Defending set pieces well is crucial — a high percentage of goals come from corners, free kicks, and throw-ins. Midfield pressing to prevent the opposition from entering the final third reduces the number of shots faced. Communication between the goalkeeper and defenders ensures the defensive line stays organised and does not leave gaps.
Step by step
- Enter the expected goals against.
- Select Calculate to read the clean sheet probability.
Worked example
Facing an expected 1.2 goals against, the clean sheet probability is e^(−1.2) × 100, about 30.1 percent.
Frequently asked questions
How is the clean sheet probability worked out?
Clean sheet probability = e^(−expected goals against) × 100. Using a Poisson model, the chance of conceding no goals falls as the expected goals against rises. Enter the expected g…
Why use expected goals against?
The Poisson model needs an average to work from. Expected goals against is the best single estimate of how many goals a defence is likely to concede.
How is clean sheet probability calculated?
It typically uses a Poisson distribution model where the probability of conceding zero goals is calculated as e^(-xGA), where xGA is the expected goals against. This gives a mathematical estimate based on the quality of chances the team typically concedes.
Why do clean sheets matter for fantasy football?
In most fantasy football games, goalkeepers and defenders earn bonus points for clean sheets. This makes clean sheet probability a key factor in choosing which defensive players to select each gameweek.
How accurate is the Clean Sheet Probability Calculator?
This tool uses the Poisson probability of zero goals, which is e to the power of minus the expected goals against. It assumes goals arrive independently, a standard simplifying assumption. Double check your inputs, since a wrong number going in gives a wrong number coming out.
Is the Clean Sheet Probability Calculator free to use?
Yes. Every tool on GamersZone is free, with no account and no limit on how many times you calculate. The maths runs in your browser, so the numbers you enter are never sent to a server or stored.
How we calculate this
This tool uses the Poisson probability of zero goals, which is e to the power of minus the expected goals against. It assumes goals arrive independently, a standard simplifying assumption.