Watch as Coach Stephanie VanBrakle Prothro discusses "perfects" and "pitch partner off the bikes" competitive pitching drills. She explains that there are 4 mounds, and she describes what tasks and pitches would be the focus of each mound. Pitchers go through each mound needing to hit perfects 3 times in a row off the same pitch. The pitchers that are not on the mounds ride a stationary bike sprinting 30 seconds on and 10 seconds off. When a pitcher on a mound executes a perfect, they will switch with the pitcher on the bike. The drill can easily be adapted to the number of pitchers that are available.