Checkout percentage, also called checkout rate or double percentage, is successful checkouts divided by the darts you threw at a finishing double, times 100. If you needed 4 darts at a double to win a leg, that leg's checkout percentage is 1 / 4 x 100 = 25%. At the PDC World Championship final on 3 January 2026, Luke Littler was "pinning 46% of his attempts at double" in his 7-1 win over Gian van Veen (PDC match report).
| What you want | Formula | Example |
|---|---|---|
| Checkout percentage | checkouts / darts at a double x 100 | 2 / 9 x 100 = 22.2% |
| Darts per checkout | darts at a double / checkouts | 9 / 2 = 4.5 darts |
| Legs converted | legs won / legs with a dart at a double x 100 | 2 / 3 x 100 = 66.7% |
How to calculate checkout percentage
The rule books we checked (WDF, the DRA rules used at PDC events, DDV and ADO) do not define checkout percentage, so there is no official counting rule. The one decision you have to make is which darts count as "at a double". A simple rule that works for counting by hand:
- Count a dart at a double every time you throw while your score can be finished with that one dart: an even number from 2 to 40 (double 1 to double 20), or 50 (the bull, which counts as double 25).
- Do not count setup darts. On 60 you throw at single 20 to leave 40. That dart was not at a double.
- Count every checkout you hit: one per leg you finish.
- Divide checkouts by darts at a double and multiply by 100.
Use the same rule every time. If you change what counts as an attempt, your old and new percentages are no longer comparable.
Worked example: three legs of 501
| Leg | What happened on the finish | Darts at a double | Checkouts |
|---|---|---|---|
| 1 | On 40: single 20 (20 left), then D10. | 2 | 1 |
| 2 | On 32: a miss outside the board (32 left), single 16 (16 left), single 8 (8 left). Next visit: single 4 (4 left), then D2. | 5 | 1 |
| 3 | On 36: single 18 (18 left), single 9 (9 left, odd), then single 1 to leave 8. Your opponent wins the leg. | 2 | 0 |
| Total | 9 | 2 |
- Checkout percentage: 2 / 9 x 100 = 22.2%
- In leg 3 the third dart was a setup dart on 9, so it does not count.
- Legs converted: you had at least one dart at a double in all three legs and won two, so 66.7%. That is a different number for a different question: how often you finish a leg once you are on a double.
Checkout percentage in master out and straight out
The same idea works with other finishing rules, but the darts that count change. In master out a triple also finishes, so a dart counts whenever one double or triple could finish your score (on 60, T20 is a finishing dart). In straight out any segment finishes, so checkout percentage says little about your doubles. The rules themselves are in double out, master out and straight out.
Why some finishes give you more darts at a double
When you miss a double into its single, you are left with half your score. From some numbers that keeps you on a double for longer. We worked these chains out from the numbers themselves:
| You start on | Single hit leaves | Doubles in a row before you have to set up |
|---|---|---|
| 32 (D16) | 16, then 8, 4, 2 | 5: D16, D8, D4, D2, D1 |
| 40 (D20) | 20, then 10, then 5 (odd) | 3: D20, D10, D5 |
| 36 (D18) | 18, then 9 (odd) | 2: D18, D9 |
| 50 (Bull) | 25 (odd) | 1: the bull |
This is arithmetic, not a rule about which double is best for you. Your own hit rate on each double decides that, which is what the next section helps you see. For every route from 170 down, see the checkout chart.
What checkout percentage professionals hit
We found one figure in a primary source for this page, and it describes one player in one match: Littler's 46% at double in the 2025/26 PDC World Championship final (PDC, 3 January 2026). We have not found a published data set that says what checkout percentage is "good" for beginners, pub players or league players, so we do not give one. The useful comparison is your own percentage over time, counted the same way every time.
What Darts Counter tracks today
We checked the app's code before writing this section:
- No checkout percentage yet. The app does not count darts thrown at a double, so it cannot show checkouts per attempt.
- Max. Checkout in X01 statistics is the highest score you finished from in one visit.
- On Double is the number of doubles you hit and their share of all your darts, for example 12 doubles in 300 darts = 4.00%. Doubles you hit while scoring, such as D20 on 501, count too, so this is not a checkout percentage.
- Checkout heatmap (Doubles) in X01 advanced statistics counts how often you finished a leg on each double, so you can see which doubles you actually win legs on. Advanced statistics are unlocked with a short video, a one-time purchase or a Darts Counter Plus subscription.
- Checkout suggestions from 170 down appear after every dart and are double out routes.
Until the app counts attempts, you can combine the two: add up the Checkout heatmap (Doubles) for your checkouts, and keep a tally of your darts at a double on paper.
Want checkout percentage in Darts Counter? Tell us
Darts Counter does the subtraction, suggests the finish and keeps your average for every leg.
Sources
Written by FLAME Apps, maker of Darts Counter since 2015. Checked 2026-09-25.
- PDC: Astounding Littler retains Paddy Power World Darts Championship title (3 January 2026, fetched 2026-09-25)
- WDF Playing and Tournament Rules, 20th revised edition, rules 2.02 to 2.05 (double finish, bull as double 25)
- DRA Rules 2026 (rule book for PDC events; Darts Regulation Authority)
- Darts Counter app code, X01 statistics and advanced statistics (read 2026-09-25)
- Keep reading: how to calculate your darts average, what is a good darts average, 501 rules
