About us

1Day Performance is a sport and performance psychology practice founded by Dr Chelsi Day, a licensed psychologist and certified mental performance consultant. Our practice specializes in working with high performers, with a particular focus on athletes. We provide individual and group consultation services, as well as organizational assessments and support. Our goal is to help individuals and organizations reach their full potential by optimizing their mental and emotional well-being. With our expertise in performance psychology, we are dedicated to helping high performers achieve their goals and overcome any barriers that they encounter. At 1Day Performance, we are committed to providing personalized and evidence-based care to help our clients thrive in both their personal and professional lives.

1Day Performance was founded by Dr Chelsi Day, a well known sport psychologist with a passion for working with high performers. With a wealth of experience in the field, Dr Day recognized the need for integrated support beyond performance psychology that incorporates individual and organizational health, well-being, and high performance. In 2014, she established 1Day Performance with the goal of providing comprehensive and tailored services to help high performers reach their full potential. 

In addition to individual support services, Dr Day has built programs from the ground up in the collegiate setting, engaged in culture evaluation and development in professional sport organizations, assisted in coach and player talent identification and hiring, and helped create systems for optimal functioning in high performance spaces.