agility

Hello, I'm a high school badminton coach from Minnesota. Anyone heard of or use a stop watch app for either Android or Apple for tracking agility obstacle times? Especially for agility drills such as side to side or front to back court runs.

Hi , My son is a singles player(16 y/o) and i am seeing that one of his weakness is recovering slow drops. We are doing agility drills and ladder drills as part of the training, his footwork also has a split drop and his position from base is also square to where the shuttle is. I would like...