Kelsey Sullivan joined the Williams Track and Field coaching staff in October of 2022. 
 
Sullivan began her coaching career at Edgewood High School in Madison WI. In her first year of coaching Sullivan led the girls team to the first conference, regional and sectional win in school history. In 2022, the team repeated the sweep. 
 
Sullivan competed collegiately in the Heptathlon/Pentathlon at Northeastern University (2014-2016) and University of Wisconsin-Madison (2017-2019). While at Northeastern, as a sophomore, Sullivan set a school record in both the pentathlon (3,791pts) and heptathlon (5,063 pts). While at Wisconsin Sullivan scored points for the Badgers at both the Indoor and Outdoor Big10 Championships in 2018/2019. 

Sullivan graduated from the University of Wisconsin- Madison, a first generation college student, with a degree in social work. Before Williams, Sullivan spent two years as a community mental health social worker and high school track coach.