Female high school athletes playing volleyball and soccer (N = 32) responded to a social validity questionnaire that inquired about their experiences with a sportfocused mindfulness training program. On average, the student-athletes rated most highly the effects of mindfulness training on emotional awareness and attention focusing, the contribution of mindfulness toward team play, the benefit of having coaches learn mindfulness skills, and the application of mindfulness to other sports. There were dissimilar ratings between the volleyball and soccer student-athletes concerning use of mindfulness when preparing for and during games. Most of the formal mindfulness practices taught during the training program were rated as being helpful to very helpful. We discuss factors influencing these findings and implications for mindfulness–sport performance research.