109 checkout

In short

109 checks out in three darts under double out: T20, S17, D16, for 60 + 17 + 32. If the treble 20 lands in the single 20, 89 is left and still on: T19, D16. Should the third dart, at the double 16, drop into the single 16, 16 is left for the next visit: D8. With only two darts in hand, T20, S17 leave 32, so D16.

T20
60
S17
17
D16
32
Double out

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
89 left, with the two darts left
T19
57
D16
32
double 16 → single 16
16 left, on the next visit
D8
16

With fewer darts in hand

The finish is then out of reach: these darts set up the next visit.

Two darts
leaves 32, so D16
T20
60
S17
17

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

Let DartSync work out your finish

In a game, the scoreboard shows the route every visit, following the checkout rule you chose.

Play a game of 501