The application saves after 100 darts only! Darts Practice, Training, Trainer, 501, Triple 20, 19, 18, 17, 16, 15, Statistics, Averages, Best Scores. Darts Practice 20 application analyses your performance at 20, 19, 18, 17, 16, 15 regions and calculates variations in horizontal and vertical axes. The aim is to hit maximum triples in 100 darts.