Case: A healthy 15-year-old male baseball pitcher sustained a right iliac crest avulsion fracture, and then fractured his left iliac crest in the same manner less than 6 weeks into his initial treatment protocol. Conclusion: General nonoperative guidelines for pelvic apophyseal avulsion fractures encompass a period of rest, followed by protected weightbearing, and then progressive stretching and strengthening exercises with a gradual return to sport. Due to the timing of the injuries, the treatment protocol was greatly delayed to 6 months to ensure proper healing and resolution of symptoms prior to return to sport.