Callie Krispin is the General Manager and a Partner at One on One Fitness Consultants, where she is dedicated to ensuring both team members and clients have the structure, tools, and support they need to thrive. A Certified Personal Trainer and licensed massage therapist, Callie began her professional fitness journey after studying Entrepreneurship at Grove City College and completing the One on One Personal Fitness Training Instructor Program in 2012.
She excelled as a fitness professional and, over the years, has played an integral role in developing much of the programming One on One uses today. In January 2025, she was promoted to General Manager and now oversees team development, client experience, and operational strategy.
In addition to Callie’s managerial responsibilities, she continues to lead Personal Training, Small Group Training, and One on One Stretch sessions. She’s especially passionate about helping clients move better so they can move with confidence during their workouts and lead active, fulfilling lives beyond the gym. She is a committed believer in One on One’s mission and has witnessed firsthand the transformative impact it has on both individuals and the broader community.
Outside of work, Callie embraces an active lifestyle and cherishes time with her family. She enjoys trail running, skiing, and cheering on her children—Jack and Julia—at games, performances, and other special events. She and her husband Patrick love traveling and spending time outdoors together as a family.
Below is a list of Callie’s certifications:
Back to the team.