The effects of a coaching intervention involving Bandwidth Feedback and Questioning (BF-Q) on competitive swim times (cTIME), practice swim times (pTIME), and technique (TECH) were determined for competitive youth swimmers. The pre-post-transfer design spanned one short-course (25m) swim season. It was concluded that coaching in which feedback was delayed and replaced with questions directed to the athletes contributed to improved technique and subsequent faster race times. Compared to the Control group, the BF-Q group displayed greater gains in TECH during the intervention period and greater improvement in cTIME during the transfer period. Results are presented in a context of cognitive psychology, motor learning, and questioning. Applications to coaching practice and coach training are also discussed.