Our Coaches - the heart of our program

Mickey Everson, Head Coach

Coach Mickey started training as a gymnast when she was just three years old. She was honored to be one of the first two 7th graders allowed to participate in a varsity sport at Aberdeen Central High School (CHS), where she competed through the age of 18 years of age. She proceeded to earn a B.S. Ed. in  Elementary Education and Coaching, specializing in gymnastics and track, at Northern State University. Coaching has been a passion of Coach Everson since she began coaching gymnastics at the YMCA right out of high school. Her love of coaching led her to continue as the YMCA program turned into AGA, and she continued coaching for AGA until 2016. She has also been a South Dakota High School Gymnastics Official from the years 1995-1997, but she realized how much she loved coaching and opted to become the Aberdeen CHS Varsity Assistant Coach from 1996-2016. She even coached the then newly-formed CHS Competitive Dance Team for four years. Coach Everson diversely spends her spare time serving as the Corporate Financial Administrator for DSI, a YMCA fitness instructor, and an assistant sports event coordinator at CHS.





Sherise Rivera, Assistant Coach

Coach Sherise doesn’t remember she did not want to be a gymnast. Because her small, rural town did not have gymnastics, her mom tried to distract her with dance. When a gymnastics club opened in Pierre, SD, although it was a drive, it was close enough that Sherise could complete her dream of being a gymnast. Sherise competed in club gymnastics for five years. Her coaching capabilities were noticed early by her club coach, and she helped instruct younger gymnasts in the club’s summer camps.  Sherise went to on to help coach at a gymnastics gym in Grand Forks, ND and loved it.  Having the opportunity to coach again has been a wonderful gift to Sherise, and she looks forward to sharing her passion and enthusiasm for the sport with your gymnast.  She is also developing our AAU Bronze Team, a competitive club team!                                            







Mary Franssen, Assistant Coach

Mary is from Denver, Colorado.  She spent 10 years participating in gymnastics, both in rec and for her high school, earning four 5A team titles and a team State record.  She has 5 years of coaching experience.  She is currently a student athlete (track and cross country) at Northern State University. She is very excited to return to the gymnastics world as an AGA assistant coach this fall, and coach for the Aberdeen Central Middle School team! 










Erin Walth, Assistant Coach

Erin Walth was born and raised in Aberdeen, SD. She started gymnastics at age 8, and continued into high school, competing for Aberdeen Central for 3 years.  She has 3 years of coaching experience, growing from assistant to head coach for the CHS middle school team. Erin has also taught preschool gymnastics at the Montessori School of Aberdeen.  Besides coaching, Erin is a group fitness instructor at the YMCA, specializing in leading cycling and TRX classes.  She is currently pursuing a counseling degree at NSU. She is looking forward to being back in the gym and meeting all the gymnasts!








Tia Swiontek, Assistant Coach

Tia started dance in 3rd grade and gymnastics in 4th grade.  She began competing for Aberdeen Central on the Varsity team in 7th grade, and continued through her sophmore year, then continuing in the sport as the team manager.  She also was involved with AGA previously, assisting coaches during her summer breaks.  Tia  recently found a new joy in choreographing different styles of dance, and will be a great asset to AGA in helping develop skills and floor routines for developing gymnasts.   Tia will graduate from CHS in May and continue her education at Northern State University this fall.  She plans to remain active in dance as well, as a teacher and assistant at the Aberdeen Recreation and Cultural Center (ARCC).