Caylee Costello will enter her 10th season as a full-time member of the SDSU soccer coaching staff in 2026. This year embarks her first as the program's associate head coach which includes an elevated role for the long-time Jackrabbit coach which was announced in May.Â
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Costello has been a mainstay in the program over the past 15 years. She recently completed her ninth season as an assistant coach. Prior to her full-time position, Costello served as a graduate assistant on the staff for two years and as a volunteer assistant for one. Her coaching experience was proceeded by a college career at South Dakota State that saw the former Jackrabbit become a four-time letterwinner. Â
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Costello has seen the SDSU program develop into one of the most steady squads in all of Division I women’s soccer. Her time as a student-athlete from 2010-13 featured a Summit League regular season title won during her sophomore campaign. Costello started in every match during her final two years of eligibility at defensive midfield. Her senior year was capped with First Team All-Summit League accolades. She also was one of the first two Jackrabbit soccer players to be named to The Summit League All-Academic Team.Â
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The Sioux Falls native took on a volunteer assistant role in 2014 and has since been a member of the staff across 12 seasons. In that span, the Jackrabbits have advanced to eight NCAA Tournaments. SDSU has won a combined 11 conference championships which includes eight Summit League tournament championships and three regular season titles. The 12-year stretch has seen the Jacks accumulate a 153-54-37 overall record (.704 win percentage).Â
She holds her National Soccer Coaches Association of America National Diploma and obtained her Coerver Youth Diploma in 2013.
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A Sioux Falls, South Dakota native, Costello graduated from South Dakota State in 2015 with a bachelor of science degree in physical education and has earned a master’s degree from SDSU as well. Costello currently resides in Brookings.
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