With one sport, you can understand how which days to train hard.  The following is an excerpt printed with permission from Human Kinetics book, Run Strong, by Kevin Beck.  It covers running only but the concepts cross sport lines.  Understanding training rules of thumb will put you on the path to designing your own training patterns.

Based on my experience as an athlete and a coach, I believe that the most valuable tool for any self-coached runner is an outline to guide decisions regarding which workouts are appropriate. The various types of training, ...