Tennis Club Staff
Purpose-Driven Training. Championship-Level Focus.
At Four Lakes Athletic Club, our tennis professionals bring decades of combined experience, competitive insight, and a true passion for player development. Whether you're looking to sharpen your skills, join a league, or explore the right path for your game - our coaches are committed to helping every player reach their full potential.
Tennis Pros
Jonathan Teune - Director of Tennis
Jonathan brings a wealth of experience coaching players at all levels—from beginners to nationally ranked juniors and collegiate athletes. Before joining FLAC, he coached at several premier tennis clubs in the Chicago area. His players have achieved USTA District, Sectional, and National rankings, and gone on to compete at NCAA Division I, II, III, and NAIA programs. Jonathan holds a Professional Tennis Registry (PTR) certification and competed collegiately at both Taylor University (NAIA) and Lewis University (NCAA DII).
(262) 743-2644 | jon@flaconline.com
Sherwin Miranda - Head Tennis Professional
Sherwin joined FLAC in 2018 after playing four years of NCAA Division II tennis at the University of Findlay. He holds a Bachelor’s degree in Strength and Conditioning and an Associate’s degree in Personal Training. As a junior, Sherwin was ranked in the top 100 nationally in India, and he now brings that competitive background to developing players at every stage of their game.
(262) 379-1006 | sherwin@flaconline.com
adam westhauser - Tournament Director
Adam played varsity tennis at Judson University (NAIA) in Elgin, IL, where he studied marketing and competed from 2009 to 2013. His coaching experience spans Wisconsin, the Chicagoland area (Centre Court), and Memphis, TN (Tennis Memphis). Adam has led the boys’ varsity team at Big Foot High School since 2018 and began coaching the girls’ varsity team at Elkhorn High School in 2022. He is a certified PTR professional with a passion for youth development and team coaching.
(262) 379-1006 | adam@flaconline.com
Brian Jaaksi - Staff Pro
Brian is a graduate of the distinguished Professional Tennis Management program at Ferris State University and holds a P2 certification through the USPTA. Before coming to FLAC, he taught in both Georgia and Minnesota, training players ranging from beginners to nationally ranked athletes. Brian’s technical foundation and broad coaching background make him a versatile asset to our tennis program.
(262) 379-1006 | brian@flaconline.com
Lynette Trost - Staff Pro
Lynette is PTR certified and brings a strong background in both education and tennis. She has directed the Elkhorn Area School District’s summer tennis program for the past eight years and has led USTA adult league teams to State and Midwest Championships. With a degree in Education from UW–Madison and years of teaching experience, Lynette excels at working with Red, Orange, and Green Ball juniors, combining classroom skills with on-court instruction.
(262) 379-1006 | lynette@flaconline.com
rick Bowhousen - staff Pro
Rick brings decades of coaching experience at clubs and country clubs across Dallas, Ft. Lauderdale, Boca Raton, Milwaukee, and Green Bay. He has also coached high school tennis for nine years, earning two Wisconsin Coach of the Year awards. Rick played collegiately at Ripon College and achieved USTA adult open division rankings at both the sectional level in Florida and nationally. His diverse background and leadership make him a standout coach for players of all levels.
(262) 379-1006 | rick@flaconline.com
Additional Tennis Professionals
Patti Jilek: 20 years of coaching experience at College Park Athletic Club in Deerfield, IL.
Jennifer Lesniewski - Played varsity tennis at the University of Connecticut (NCAA DI) from 2010-2014.
Gwen Hammond: WIAA (Wisconsin) Doubles State Champ in 2020 at Wilmot HS.