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21 Checkout

How to check out 21 in darts with a double out — the standard route, the backups, and what to aim at when a dart lands short.

Best 21 checkout
S5D8
2 darts · finish on D8

Dart by dart

Each dart and its most common miss (a treble or double landing in the single of the same number):

  • Dart 1 S5 → 16 left, then D8
  • Dart 2 D8 → game shot
  • Miss lands S8 → 8 left, then D4

Other ways to finish 21

  • S1D10finishes on D10
  • S13D4finishes on D4
  • S9D6finishes on D6

Quick facts

  • Darts needed: 2 darts (a two-dart finish)
  • Finishing double: D8
  • One-dart finish? no
  • Straight out (no double needed): T7

21 left in a real game?

Score your next leg in the free ChillDarts scorer — it shows the suggested checkout live as you throw, dart by dart. No sign-up, works on your phone.

Open the 501 scorer →301 scorer

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See every finish from 170 down to 2 on the checkout chart & calculator.