Jeremy Byrne - Head Coach

Jeremy Byrne is entering his seventh year with the club. Prior to RAC Jeremy spent two years as the Head Age Group Coach for the Baldwin Swim Club. He has also spent time at the Baldwin School as part of the school's athletic faculty and coached at both the Middle School and High School level. Before joining Baldwin, Jeremy was the Head Age Group Coach and Head Masters Coach for Friends' Central Aquatics. Jeremy has coached in 3 different LSCs (MW, WYO, MA), worked with swimmers at all levels of competition (Swim Lesson to Olympic Trials), and brings a diverse and unique perspective to the program.
Jeremy graduated from the University of South Dakota where he double majored in English and Fine Arts.  While in college, Jeremy was a member of the USD Men’s Swim Team.  Jeremy currently resides in Downingtown with his wife, son and three daughters.


Chase Gibson - Assistant Head Coach/Girls Head Coach/Bronze Group Lead Coach

Chase began coaching competitive swimming and recreational basketball in 1999 and has been a member of the  RAC coaching staff since 2001.  He swam for Radnor High School and Radnor Aquatic Club.  Chase graduated from Villanova University School of Business with a Bachelors in Accounting and Finance & a Masters in Finance and Strategic Management.  Chase is a Certified Public Accountant with Cigna Corporation in Philadelphia.



Matt Stewart - Assistant Coach

Matt has been a member of the RAC coaching staff since 2002.  He served as the head coach at Aronimink Swim Club (in Drexel Hill) from 1995 - 2012. He has also been the head coach of the Girls' and Boys' Swimming/Diving team at Haverford High School since 2007.  He swam scholastically for Malvern Prep from 1988 - 1994.  Matt has a B.S. in Mathematics from Penn State University, and an M.S. in Instructional Technology from Philadelphia University.  He has been a mathematics teacher at Haverford High School since 1998.  Matt is a member of the American Swim Coaches' Association (ASCA), and he has earned Level 3 Education status for ASCA. 




Jo-Ann Johnson - Head Dive Coach

Jo-Ann brings unprecedented technical diving and coaching expertise to our team.  She has coached diving for the last 27 years for a combination of summer clubs, high school teams, US Diving age group teams and collegiate teams.

As a young child, Jo-Ann dove for the Vesper Club in Philadelphia. As a young adult, Jo-Ann attended the University of Pennsylvania where she dove for four years.  She was undefeated during her tenure at U-Penn and was the Eastern League champion four years in a row. On a personal note, Jo-Ann loves to cook and hates computers.



Tanya Curtis - Head Developmental Coach

Tanya has been providing swim instruction since she was 15 years old. As a child, she swam for UMLY for 8 years and the Pennypacker Country Club for 10 years. She recently graduated from Temple University  with a degree in Kinesiology and with a teaching certification in Health and Physical Education.  She also has a degree in Recreational Management. She specialized in therapeutic recreation and worked at a psychiatric hospital for children during the first few years of her career. Tanya will be working as an assistant coach with all levels of our swimmers. She will be the primary coach for our Barracuda and Piranha squads.





Mary Beth Ryan - Assistant Coach / Head Boys Coach

Mary Beth Bonner-Ryan swam competitively for Finnegan's Swim Club in Philadelphia, with Backstroke as her primary stroke. In college, she was a voice/music major and uses those skills as a professional cantor and as the lead vocalist in an Irish band. She was the head bronze coach at the Haverford Swim Club and has been a coach with RAC since 2005. In addition to her role as the mother of 3 swimmers, Mary Beth is a licensed realtor with Prudential Fox & Roach in Newtown Square and a water aerobics instructor at Cabrini College.




Ruth Small - Assistant Coach

Ruth Small has coached at the Upper Main Line YMCA, Baldwin, and Martins Dam. Most recently she coached the Radnor Girls High School team.  She is thrilled to be part of the RAC staff.









Katie Pulos - Assistant Coach/Bronze Group Lead Coach

Katie has coached several swim teams since 2007, and re-joined the RAC coaching staff in the summer of 2012.  An 11-year veteran of Radnor Aquatic Club swimming, Katie graduated from Radnor HS in 2008, where she was team captain and a school record holder.  Katie swam for Penn State University from 2008 to 2012, where she competed in the sprint freestyle events.  She was an All-American and school record holder in the 200 and 400 freestyle relays, as well as a Big Ten Champion in the 400 freestyle relay. Katie recently graduated from PSU with a degree and teaching certification in Elementary Education. Katie is also an assistant coach for the Radnor HS Girls’ Swim Team and a summer swim team coach at Aronimink Golf Club in Newtown Square.



Julie Street - Assistant Coach

Julie joins the RAC coaching staff in 2014. She has served as an assistant coach with Stony Lane Swim Club since 2006, and has coached various soccer teams and camps in the area. Julie swam for Harriton High School and graduated with honors from Penn State in 2010 with a B.S. in Finance.  She is a financial manager with AmeriGas Propane in King of Prussia.





Brooke Hagan - Assistant Coach/White Group Lead Coach

Brooke joined the RAC coaching staff in 2017. She swam for the Ridley YMCA for 11 years and Ridley High School, where she graduated from in 2014. Brooke is a senior at Cabrini University majoring in Early Childhood Education and Special Education. She is a member of the Cabrini Swim Team where she specializes in the distance freestyle events, butterfly and IM. In 2015 she was the 200 fly Allegheny Mountain Conference champion. Brooke coached at Glenolden Swim Team for 3 years and is looking forward to coaching with RAC. 






Stephanie Viola - Assistant Coach

Stephanie has been coaching swimming since 2007 and is a former RAC swimmer. She served as an assistant coach for Aronimink Swim Team from 2007-2012 and since 2012 has served as the head coach at Aronimink. She also was the assistant swim coach at Rustin High School from 2014-2018 and is now the assistant swim coach at Haverford High School. 

Stephanie started her swimming career at Aronimink Swim Club then continued on in high school at Archbishop Prendergast & Radnor Aquatic Club and for one year at West Chester University. She is currently a physical education teacher at Haverford Middle School.




Jaime Cessna - Assistant Coach

Jaime is excited to be a new addition to Radnor Aquatic Club.  She grew up in Springfield, and swam for Springfield High School, as well as Radnor Aquatic Club. In the summer, she swam at Aronimink Swim Club, where she also coached for two seasons.  Jaime attended Millersville University as an education major while swimming all four years for the women’s swim team. She is currently a Science teacher at Drexel Hill Middle, and continues to swim and coach. Jaime has also coached at Philadelphia Country Club, and currently coaches for Marple Newtown High School.







Tarryn Els - Assistant Coach

Tarryn Els is a rising senior on the Villanova Swimming & Diving team. She has been swimming competitively since the age of 9. Her main events include the 100, 200 butterfly and 200 individual medley.  She is currently pursuing a Bachelors of Business Administration, majoring in Finance with a minor in Economics. She is from South Africa as has represented her country several times for swimming, in Zambia and Zimbabwe. She is looking forward to joining the RAC team.



Grace Wydeven - Assistant Coach

Grace is a graduate of Georgetown University and a current first year student at Villanova Law school. She grew up swimming and coaching for Radnor Aquatic Club and is excited to be back!






Margaret Fisher - Assistant Dive Coach

Margaret Fisher joins RAC as the Assistant Dive Coach. Currently, she also works as the Head Dive Coach for Strath Haven High School during the winter months and as the Dive Coach for the Hidden Hollow Hammerheads and the Assistant Dive Coach for the Knowlton Swim Club during the summer months. Prior to this she was the Dive Coach for Springfield High School and the Primos-Secane Swim Club.

In addition to her coaching work, Margaret is experienced as both a dive meet referee and judge. As a student she dove for Upper Darby High School and the Primose-Secane Swim Club.