Staff | Administrative

Toni Wiley
Chief Executive Officer of Sportsmen’s Tennis & Enrichment Center
Toni Wiley has served as Executive Director and is currently the Chief Executive Officer of Sportsmen’s Tennis & Enrichment Center since 2008. Her previous experience includes over two decades of corporate and non-profit leadership experience. Ms. Wiley currently serves on a national USTA committee working to build the capacity of inner city tennis and education organizations like Sportsmen’s, on the USTA New England Board of Directors, as president of the New England Tennis Association, and as a board member of the American Tennis Association. She grew up in Dorchester, just minutes from Sportsmen’s, and continues to reside in the area.

Mason Bultje
Annual Fund Manager
Mason grew up in Minnesota, where he started playing tennis at three years old. He quickly fell in love with the sport and he went on to compete for Gustavus Adolphus College while earning his B.A. in Exercise Physiology. Following his graduation in 2018, Mason worked for InnerCity Tennis in Minneapolis, where his passion for using tennis as a vehicle to build community and to support the holistic development of youth continued to grow. Mason is excited to bring his passion and experience to the Sportsmen’s community to further its mission.

Mary Long
Director of Special Events and Community Engagement
A dynamic, self-directed contributor with over 30 years of experience in non-profit services. Mary focuses on program development, fundraising, and special events coordination. Prior to joining Sportsmen’s Tennis and Enrichment Center, Mary led Development efforts at Bay Cove Human Services and HESSCO Elder Services. Mary holds a Bachelor’s degree in Political Science and Communications from Regis College.

Kern Johnson
Operations Manager

Kern Johnson has faithfully served as the Operations Manager at Sportsmen’s for over 15 years. Kern works diligently to ensure that the facilities are in tip-top shape for the enjoyment of our patrons. He is jack-of-all-trades and loves what he does here at the club. Mr. Johnson is a welcome fixture and our members and staff absolutely adore him. Kern is also a talented DJ of 20 years.

Gayna Sealy
Program Manager

Gayna Sealy has been an active member and volunteer at Sportsmen’s since 2012, when she first started playing tennis. In 2015, she became the Program Coordinator and provides operational support to the Tennis, Enrichment, Community Outreach, Development, and General Operations areas of the club. She exhibits creativity and flexibility in helping to design the scope and reach of this position Ms. Sealy holds a B.A. in African American Studies from Smith College, and a M.Ed. in Elementary Education from Boston College. She immigrated to Boston 30 years ago from Barbados, and currently resides in Hyde Park.

Jackie Wiley
Community Engagement Coordinator

Jackie Wiley (she/her) is STEC’s Community Engagement Coordinator and has been with Sportsmen’s intermittently since before her 2012 graduation from Wellesley High School via the METCO program. She has held roles in summer camp, School-to-Sportsmen’s, development, and behind the front desk.

Jackie attended Spelman College in Atlanta, GA. She continues to study computer science and data management. Jackie enjoys art, music, performance, and her cat named Ginger.

Marisa Prince
Marketing & Communications Manager

Marisa Prince serves as STEC’s Marketing & Communications Manager. She’s passionate about storytelling – and building bold, creative initiatives that facilitate transformative experiences. She’s written and produced Music Videos, Podcasts, Concert Specials and Film – and led Comm’s, Development and Partnership successes for start-ups. In addition to earning a B.A. in Sociology from Spelman College and a JD from Boston College Law School, Prince is also a proud graduate of the Los Angeles Film School’s Immersion Producing Program.

Staff | Coaching

Sportsmen’s Tennis Coaches: All of our coaches enroll in ongoing professional development that gives them the experience and knowledge to develop as individual coaches and as part of our coaching team.

Marton Balla
Director of Tennis
Despite dedicating 30 years of sweat and work on tennis courts, if you google Marton Balla you will find an article about his wedding (and maybe a picture of his pregnant wife) before digging up all of his tennis results. In 2000, while escaping the mandatory Hungarian military service, he landed at Eckerd College in St. Petersburg, Florida. He spent 4 years loving life, studying, and playing tennis on the beach. He was ranked in the top 10 in division II, and was awarded several recognitions from both his college and the conference such as Athlete of the Year.

After graduation he was not ready to leave the sunshine, so he began coaching in the Tampa Bay area. While coaching, Marton received mentoring from tour level coaches, while working and traveling around the world with top International Tennis Federation Juniors. During his 3 years at the Saddlebrook Internationa Tennis Academy, trained numerous WTA and ATP players, devoting most of his time to Alex Domijan who became #1 on NCAA.

Marton is most proud of his wife Kate and his two children Matteo and Leila, who play tennis at STEC.

Robert Amartey
Teaching Professional Tournament Training
Originally from Ghana, Robert has represented his country in Davis Cup competition. He holds his certification from the ITF (International Tennis Federation and PTR (Professional Tennis Registry). Robert has lived in the US for over twenty years and has coached at Sportsmen’s for over ten. Robert works primarily with our Tournament Tennis program.

Matthew Bejian
Teaching Professional and Tournament Director
Matt Bejian joins Sportmen’s with 10+ years of coaching and teaching experience and four years of Division I Men’s Tennis at Loyola University of Maryland in the Patriot League. In 2011 & 2012, Matthew played on the MA State High School Championship team and acquired a large amount of doubles-focused match experience. Matthew is currently working for the USTA, overseeing tournament play in New England. He graduated from Babson College with an MBA in the spring of 2021. In his free time, he is using his MBA concentration in entrepreneurship to develop a tennis product.  Matthew also enjoys hiking, golfing, skiing, spending time with his girlfriend, and building rock balancing sculptures around Cape Cod.

Andy Crane
Tournament Director
Andy is a former journalist, lawyer, government official and longtime youth development leader who, since 2012, has been the USTA New England Tournament Director for STEC.

Andy began his relationship with Sportsmen’s in 1996, when then Executive Director, Les Smith agreed to support BLAST, a new high school tennis training program that Andy initiated with parents of Boston Latin School students.

Over the years, BLAST provided off-season training for hundreds of Boston-area students who aspired to play high school tennis.

Andy has been a volunteer for USTA New England in many capacities, including: Chairperson of the Diversity and Inclusion Committee, the Grievance Committee, the Eastern Mass Committee, and member of the USTA New England Board of Directors.

Andy served as Program Director, then Summer Program Director, for Tenacity from 1999 to 2010, and has coached high school tennis at Latin Academy since 2009.

Marcy Cunniff
Adult Tennis Coordinator

Marcy has devoted her life to the sport of tennis and truly loves to play, teach and share her enthusiasm for the game. As a junior, Marcy was ranked #1 in doubles and top 5 in singles in New England.  Nationally, Marcy was ranked as high as #6 in doubles.

As a professional, Marcy has been an active member of USPTA for over 30 years, earning recognition as one of the top pros in continuing education in 2019. She served as Director of Tennis and Head Pro at the Hay Harbour Club on Fishers Island, NY and at the Eastern Yacht Club in Marblehead, MA before. Joining Boston Athletic Club, where she led the tennis program as Head Pro and Director of Tennis.

Hajji Glover
Stringer & Teaching Professional
Hajji has been coaching and teaching at the Sportsmen’s for 18 years.

He has been the Director of Tennis at the Charlestown Community Center for the past 9 years.

Hajji coaches part–time in the weekend programs while also teaching private lessons at Sportsmen’s.

He played collegiate tennis for the University of Massachusetts, Boston and is the proud father of Hajji Jr. and Ella, who actively participate in Sportsmen’s Tennis programs.

Hajji is USPTA and USPTR certified.

Brian Jenkins
Teaching Professional and Fitness Professional
Boston born and raised, Brian has been a part of Sportsmen’s for over 10 years. He has volunteered for events and now coaches. Brian supports the tennis academy & T1 programs while also providing fitness lessons at Sportsmen’s. He actively participates in the summer Sportsmen’s Tennis program as a coach and is passionate about providing educational, health and wellness support in the community. Brian is also a Science Teacher at a local charter school in Boston.

Brendan Jimenez
Tennis Teaching Professional
I started playing tennis at 6 years old. Trained at the Manchester Athletic Club in the juniors. Went to train in Spain at the Bruguera Tennis Academy for a couple months where I was offered a full ride but decided to stay and attend the Roxbury Latin School. Graduated from Skidmore College in 2023 and had been nationally ranked Top 20 for singles and doubles for all Division 3 tennis. Also was named All American, National Most Improved Senior and Player of the Year for my conference during my senior year. Had previously coached at the Longwood Cricket Club for the last 3 years.

Sheryl Maskell
Teaching Professional
Coach Sheryl Maskell has joined Sportsmen’s coaching team as a Teaching Pro in the Adult Tennis program! Coach Sheryl is a USPTA and USPTR certified pro, who previously served as the Tennis Director at the Mount Auburn Club for over 15 years.

Konrad Ryba
Teaching Professional

I have played tennis my whole life, starting more seriously around age 9-10 where I began playing USTA tournaments and training with many of the best coaches in the Midwest. I played positions 1-2 on my varsity high school tennis team, and began coaching clinics and private lessons during my junior and senior years of high school. During college summers, I worked as a coach at Five Seasons Sports Club in Northbrook, IL, where I gave hitting lessons and managed junior tournaments for up and coming players. When I moved to Urbana, IL, I began working as a coach at Atkins Tennis Center at the University of Illinois in Urbana-Champaign, and frequently ran tennis clinics, gave private lessons, managed tournaments, and even strung tennis rackets for players in my down time. Before I moved to Boston in 2017 I was also a hit-in coach for clinics at the Glenview Tennis Club (IL) for some top juniors, and got the opportunity to play with ATP pros with career-high rankings as high as the 300s. I have always loved tennis and look forward to being a part of the team!

Dimitri Vlassov
Teaching Professional
Dimitri Vlassov comes to Sportsmen’s after working as a part-time Tennis Coach at the Nahant Country Club in Nahant, MA for seven years. Dimitri oversaw the kids program for four years, developing junior players through the quick start method. Dimitri has also been responsible for developing the adult tennis program and tournament schedule at the club, recently serving as the Director of Tennis. Dimitri spent two years playing Division Two tennis at Stonehill College in Easton, MA before completing his Bachelor’s degree in Sports Management from the University of Massachusetts Amherst. From stroke development to match play analysis, Dimitri is excited to share his knowledge with individuals of all playing abilities.

Deion Whitehead
Teaching Professional
Deion Whitehead was born and raised in Boston MA. He grew up playing tennis at Sportsmen’s and learned how valuable the sport is and how much fun he was having while playing the sport. As the years went by he was coached by many of STEC’s coaches and really grew to love the sport. After graduating from High School in 2013 he started coaching at STEC and participating in various inner city tennis programs. He is currently working at Sportsmen’s as a tennis professional with a focus on the youth tennis program including the “School to Sportsmen’s program. As a coach, he wants to bring the best out of everyone, making sure that everyone is following instructions which also includes his students asking him questions if they have any.

Erik Wolflink
Teaching Professional

Staff | Enrichment Programs

Charlynne Mines-Smart, MSHS
Chief Program Officer
Charlynne has a passion for the education of our future young leaders. Over 30 years of experience working with youth and families, Charlynne has joined the Sportsmen’s team to help further the impact of the Learning Center’s programs. She has worked in the community holding leadership positions at Lena Park, CDC, Boston Centers for Youth and Families as well as working as the Surround Care Coordinator at the Ellison Parks Early Education School. Mrs. Mines-Smart holds and B.A. in Human Services in Community Youth Development and Leadership and a Master’s in Organizational Leadership both from Springfield College. She is currently pursuing a Ph.D. in Organizational Leadership and Management. Charlynne is grateful that she gets the opportunity to work each day with the youth and families in the community she continues to live in.

Khima Bibbins
Manager of Academics & Enrichment

Mrs. Khima Bibbins originally hails from Elizabeth City, North Carolina, and has lived in Boston for almost 20 years. She became our Manager of Academics & Enrichment in June of 2022. Before coming to Sportsmen’s, she taught in the Boston Public Schools district, as a middle school English Language Arts teacher. She holds a Bachelor’s Degree in Psychology, and a Master’s Degree in Education with a License in Teaching. Her philosophy is that every child can learn, we just have to figure out how they learn and what they are passionate about, and speak to that. She is especially committed to working with disadvantaged youth and those without access to resources, and showing them how they can be successful (despite the difficulties of their circumstances), and make a positive contribution to society. She is committed to educating and influencing the minds of young people, in a positive and transformative way. She brings to this role her varied experiences as an office manager, administrative assistant, executive assistant, case manager, camp counselor, and most recently an teacher/educator. When she’s not working at Sportsmen’s, she enjoys music, singing, being active within her local church, and spending time with her husband and three children ages 17, 11, and 4.

Andre “AJ” Lockett
Classroom Coordinator
Joining Sportsmens in early 2022, AJ as one of our Classroom Coordinators, has worked hard to learn the game of Tennis while bringing enthusiasm for learning to our classrooms and our courts.

Mandy Bass
Director, Health Programs
Mandy Bass, RN, MS, is Camp Nurse and Health and Wellness Advisor, and Learning Center volunteer at Sportsmen’s since 2016. Mandy has been a nurse for many years, in roles of nurse manager, clinical specialist and school nurse. The positive energy and incredible potential of the student athletes in this community is what draws Mandy to Sportsmen’s, where she hopes to assist others in their own journey to better wellness and reaching their potential.

Board of Directors

Marilyn Chase
Former Assistant Secretary
for Health and Human Services,
Commonwealth of MA,
Chair, Governance Committee


Paul Ridker, MD, MPH
Director of the Center for Cardiovascular Disease Prevention, Brigham and Women’s Hospital,
Executive Director of the Center for Community Wellness (CCW)
Chair, Health & Wellness Committee

Clara Arroyo
Chair, Finance Committee
CFO, Boston Plan for Excellence

Lindsey Dashiell

Lindsey Dashiell
Scott Babka
Capital Campaign Co-Chair
Board Member,
Director of Finance and Impact
One Mighty Mill LLC

Bill Benjes
Development Committee
Managing Principal at Covalent Partners LLC

Ruth Birnberg

Ruth Birnberg
Member, Consultant

Julianne Bridgeman
Member, Realtor,
William Raveis RE

Sue Denny
Retired Consultant

Armando Dockery

Armando Dockery
Member,  Retired Firefighter
Waltham Fire Department

Harit Doshi
Member, Co-founder and CEO at Omniply Technologies

Noel Fernandez
Wellington Management Company

Bob Frank

Bob Frank
Member, Retired
Non-Profit IT Professional

Freddie Jacobs, Jr.
Northeast Retirement Services, LLC
Executive Vice President – Chief Operating Officer & Chief Risk Officer

Mildred Jones

Mildred Jones
Founding Member,
Retired Senior Business Analyst
Liberty Mutual Group

Cecila Joseph
Retired, Healthcare Administrator

Guy Ronen
Non-Profit Executive, Development Committee

Dan Solomon

Dan Solomon
Brigham & Women’s Hospital,
Chair, Development Committee

Jen Stempel
Managing Director,
Deloitte Consulting

Christina Suh
Member, Founder, Women’s Foundation of Boston

Frank William

Frank Williams
Member, Retired Patrol Officer
Boston Police Department

Conway Haynes

Conway Haynes
Emeritus Founding Board Member

Albert Lewis

Albert Lewis
Emeritus Founding Board Member
Retired, Consultant