158 checkout
In short
158 checks out in three darts under double out: T20, T20, D19, for 60 + 60 + 38. If the treble 20 lands in the single 20, 138 is left, out of reach with two darts left: T20, T18 leave 24, so D12 on the next visit. Should the second dart, at the treble 20, drop into the single 20, 78 is left, out of reach with the last dart: T18 leaves 24, so D12 on the next visit. With only two darts in hand, T20, T16 leave 50, so BULL.
T20
60
T20
60
D19
38
When a dart strays
A missed treble or double often drops into the single of the same segment, and a missed bull into the 25 around it. Here is what that leaves, and what comes next.
treble 20 → single 20
138 left, set up 24, so D12 on the next visit
T20
60
T18
54
treble 20 → single 20
78 left, set up 24, so D12 on the next visit
T18
54
double 19 → single 19
19 left, on the next visit
S3
3
D8
16
With fewer darts in hand
The finish is then out of reach: these darts set up the next visit.
Two darts
leaves 50, so BULL
T20
60
T16
48
Under the other checkout rules
Master out
finish on a double or a treble
Same route as under double out
Straight out
any segment can finish
Same route as under double out
Neighbouring scores
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