Try to get the outs from 101 to 130 with 3 darts for each out. You can get 5, 3 or 1 point for each out.

5 points - You finished the score within three darts
3 points - Missed a finishing double with 1 dart
1 point - Left the out with a finishing double

Your out is 101, you hit T19 and 12 with your first two darts and miss the D16 with your third dart = 3 points.

Your out is 101, you hit S19, S20 and D15 which leaves D16 = 1 point
(since you left the out with a finishing double)