If a dart is randomly thrown and lands uniformly somewhere inside the scoring area of a standard dartboard, the expected score is about 12.8 points. That is a mathematical model, not a realistic beginner average.
Last reviewed: 24 August 2026. This guide explains the assumptions behind the number, why different definitions of “random dart” produce different answers, and what the result means for practice.
The direct answer
Under a simple scoring-area model, a random dart averages about 12.8 points. This assumes the point of the dart is equally likely to land anywhere inside the outer double ring and that misses outside the scoring area are excluded. It also assumes a standard dartboard with ordinary singles, doubles, trebles, outer bull and inner bull.
If you include misses outside the scoring area, the average drops. If you model a real player aiming at treble 20, the average changes again. That is why the phrase “random dart” needs a definition before the answer makes sense.
Why there is no single answer
There are several possible meanings. A dart thrown randomly at a wall could score almost nothing because most of the wall is not the board. A dart randomly landing somewhere on the full dartboard face includes non-scoring areas beyond the double ring. A dart randomly landing only inside the scoring circle has a higher average because every point scores.
Most useful discussions use the scoring-area version because it isolates the dartboard's scoring geometry. It answers: if a point lands somewhere inside the double ring with no aim bias, what is the expected score?
The scoring-area model
The standard board has 20 numbered wedges. The numbers from 1 to 20 average 10.5. Large single areas cover most of the scoring surface, while the treble and double rings are thin. The bull areas are valuable but tiny.
That balance explains the result. The high-value trebles and bullseye do not dominate because they occupy much less area. Most random scoring hits land in single beds, so the average stays much closer to ordinary single-number values than to treble or bull values.
Approximate calculation
Using common regulation dimensions, the scoring radius to the outside of the double wire is about 170mm. The treble ring is about 8mm wide, the double ring is about 8mm wide, the outer bull has a diameter around 31.8mm, and the inner bull has a diameter around 12.7mm. Area is based on radius squared, so thin rings have much less area than they appear to at a glance.
A simplified calculation weights each area by its score: singles use the average wedge value of 10.5, doubles use 21, trebles use 31.5, outer bull uses 25 and inner bull uses 50. When those are weighted by area, the expected value is roughly 12.8 points per scoring-area hit.
Why singles dominate
The large single beds cover most of the scoring circle. Even though a treble 20 is worth 60, the treble ring is very narrow. Even though the bull is worth 25 or 50, it is tiny compared with the rest of the board.
This is a useful lesson for beginners. The dartboard rewards precision heavily, but the board's area is mostly singles. Random darts are not likely to hit trebles or bullseyes often enough to make the average high.
Random is not the same as bad aim
A beginner is not usually throwing uniformly at every point inside the scoring area. They may aim at 20s, drift low, pull left, miss high, or cluster around a personal error pattern. That means their average can be higher or lower than the random model depending on where their misses tend to go.
For example, a player aiming at 20 who often lands in 5 and 1 may average differently from a uniform random model. A player who spreads around the centre of the board will produce another pattern. Real players have bias; random geometry does not.
How this compares with a player average
In 501, players usually talk about three-dart average, not one random dart. A 60 three-dart average means 20 points per dart. A 45 three-dart average means 15 points per dart. The random scoring-area model at about 12.8 points per dart would equal about 38.4 over three darts.
That comparison is only rough because match averages include strategy, doubles, pressure, busts and missed targets. Still, it helps show why a beginner who can reliably score around 40 per visit is already doing better than pure random scoring-area geometry.
Why board numbering still matters
Because the wedges from 1 to 20 average 10.5, a perfectly uniform random model does not care where the individual numbers sit around the board. If every wedge is equally likely, the order of the numbers cancels out. The average numbered wedge is still 10.5.
For real players, the numbering matters a lot. A player aiming at 20 who misses into 1 or 5 is punished by the layout. A player drifting around treble 19 may collect 7 or 3. The board is designed so nearby misses can be costly, which is one reason darts rewards precision.
Sample calculation table
| Board area | Typical score weight | Why it matters |
|---|---|---|
| Large singles | Average wedge value: 10.5 | They cover most scoring area |
| Doubles | Average double value: 21 | Higher value, thin ring |
| Trebles | Average treble value: 31.5 | High value, very thin ring |
| Outer bull | 25 | Small but above average |
| Inner bull | 50 | Highest centre value, tiny area |
The table explains the 12.8 result without needing advanced maths. Singles pull the average down because they dominate the area. Trebles, doubles and bull pull the average up, but not enough to make a random scoring hit look like a skilled visit.
What if misses count?
If misses outside the double ring count as zero, the expected average depends on how often the dart misses. If half of all throws miss the scoring area and the scoring hits average 12.8, the overall average becomes about 6.4 points per dart. If only one in ten misses, the overall average is much closer to 11.5.
This is why board contact matters early. Before chasing trebles, beginners often improve quickly by reducing complete misses and hitting large single areas more often.
Practical takeaway for practice
The practical target is not “beat 12.8”. The practical target is to build controlled aim. Start with big single 20, then add grouping drills. Track how many darts land in your intended number, not just the total score. A lucky treble can hide poor control, while three intended singles can show progress.
Use a clear dartboard so segment boundaries are visible. A dartboard surround protects the wall while you reduce misses, and a measured dartboard stand helps keep practice consistent. Use comfortable darts or dart sets, and keep spare flights and stems so equipment damage does not distort your practice.
How to test your own average
Throw 30 darts at big single 20 and record every score. Then throw 30 darts at the centre of the board and record every score. Compare both averages with the 12.8 model. If your aimed-at-20 average is higher, your aim is adding value. If it is lower, your misses are probably falling into punishing neighbours or outside the scoring area.
Repeat the test weekly. Do not judge from three darts. A small sample can be distorted by one treble or one complete miss. Thirty darts gives a clearer picture, and 100 darts gives an even better one.
How aiming changes the expected score
A skilled player is not trying to sample the board evenly. They aim at high-value targets with manageable risk. For strong players, treble 20 is valuable because the chance of hitting it is high enough to justify the target. For less accurate players, aiming directly at treble 20 may produce too many low neighbours or misses.
This is why some beginner advice suggests aiming at larger, safer areas first. A player who can reliably hit big 20 may outscore a player who chases treble 20 and misses into 1, 5 or outside the scoring area. Expected score depends on both target value and error pattern.
When the model breaks down
The model breaks down whenever the dart is not uniformly random. Real throws have clustering. Darts also enter at angles, can bounce out, hit wires or be deflected by previous darts. Match situations add another layer because players may choose setup shots rather than maximum scoring shots.
For example, a player on 40 in double-out darts should not aim for the highest expected random score. They should aim for double 20 because it wins the leg. Expected score is useful for understanding board geometry, but matchplay still depends on the objective.
Why this is useful for beginners
The model helps beginners understand the difference between luck, area and skill. Hitting a bull once is satisfying, but the bull is too small to be a reliable plan for most players. Hitting large intended singles repeatedly is a better early sign of control.
Once large singles are reliable, move the target to trebles and doubles. The average may fall at first because the target is harder. That is normal. Practice should become more specific as control improves.
Common mistakes
- Ignoring the assumption: 12.8 only applies to a scoring-area model.
- Comparing it directly with pro averages: match averages include aim, tactics and pressure.
- Assuming bull dominates: the bull is valuable but very small.
- Forgetting misses: zero-score darts can lower the real average sharply.
- Using it as a beginner target: it is a model, not a coaching benchmark.
Visual guide: how to apply this at the board
Related reading
For more scoring context, read how to score darts, what a good darts average is, how players add scores quickly, where beginners should aim and how to improve your darts.
Sources used
- CITS darts dimensions guide.
- PDC Europe rules and dartboard dimensions overview.
- PDC rules of darts overview.
- Red Dragon darts scoring rules overview.
- Darts501 dartboard information and dimensions.
Random darts are not practice darts
A mathematical random dart is different from a beginner's miss. Beginners are usually aiming somewhere, even when the dart lands badly, so their results are clustered by technique, confidence and target choice. That is why the theoretical average is interesting, but real practice data is more useful when deciding what to train next.
Bottom line
A uniformly random scoring-area hit on a standard dartboard averages about 12.8 points. Real players are not uniform random models, so use the number as a geometry insight, not a performance target.
FAQ
What is the average score for a random dart?
About 12.8 points if the dart lands uniformly inside the scoring area and misses are excluded.
Does a random dart usually hit a treble?
No. The treble ring is narrow, so most random scoring-area hits land in singles.
What happens if misses count?
The average drops depending on how often the dart lands outside the scoring area.
Is 12.8 a good beginner target?
No. It is a mathematical model. Beginners should track intended target hits and three-dart averages instead.
