Meet our Staff
Michael Zatsiorsky - Head Teaching Professional

Michael hails from the former USSR and has been at the club for over 15 years. He has been our Head Tennis Pro since 2002.

Michael played competitive tennis in the USSR and ranked as high as 5th amongst juniors and 61st amongst adults. Michael received a Bachelor’s degree in Exercise Sports Science specializing in tennis from Moscow University as well as a Master’s of Science Degree from Pennsylvania State University.


Stephen Ferris - Assistant Pro

Stephen joined us in the tennis department in May of 2005. Stephen graduated from Babson in 1989 with a degree in marketing. Stephen competes in USTA level tournaments and has recently finished the year ranked as high as #4 in New England in Men’s 35 and over singles and has also finished the year ranked #20 in the nation in the same category.

As well as having an extensive tennis resume, Stephen was an avid lacrosse player who played nationally and coached at the collegiate and high school level. If you are looking to get involved in tennis programs, Stephen is the person to talk to.

Stephen has been the coach of the 2016 State Champion Westboro High Boys Tennis Team since 2011.


Christine Roginski - Assistant Head Pro

Chris has been a teaching professional at the club since 2000. Prior to that, she was a tennis pro at another area club for 13 years. Chris is USPTA and USPTR certified and frequently attends USPTR seminars to keep current and get fresh ideas.

Chris is a former elementary school teacher with a Masters in Reading Specialization. Chris is a member of the United Racquet Stringers Association and is a NTRP Verifier Level 1. She has also attended USPTR Specialty Courses in Teaching Munchkins, Drills and Skill Building, Advanced Teacher Training and Coaching, Doubles Course with Pete Collins and Teaching Juniors.


Tigran Martirosyan - Assistant Head Pro

Tigran is a USPTR Level 1 certified instructor. He is a #1 Davis Cup player for his native country of Armenia. While playing for the University of Kentucky, he achieved the ranking of #3 in the nation and was chosen to be an All-American. He also won many collegiate individual tournaments as a member of the UK team.

In the fall of 2007, he received an MBA degree from Eastern Kentucky University. While studying at EKU, Tigran was an assistant coach of the men’s and women’s tennis teams. Tigran has played professional tennis and has reached a career high ranking of 360. He has had numerous wins over players ranked in the top150 in the word (Jan Hernych, Donald Young, Ryan Sweeting, Michael Yani).

Tigran was born in Yervan, Armenia and moved to the United States when he was 18.


Jason Dono - Assistant Pro

Jason is a graduate of Roger Williams University where he received his degree in Business Management. While at school, Jason played four years of varsity tennis. Jason has been on staff since 2008 and teaches students of all ages and abilities. In addition to his responsibilities at the club, he has also been the boys tennis coach at Assumption College and Westboro High School.

Jason still enjoys playing competitively on Westboro’s CMITA team.

He is USPTA/PTR certified as well as being a USTA official.


Dan Flanigan - Senior Pro

Dan is a WTA Tour Certified Coach with over 25 years of professional experience developing, training and travelling with nationally ranked juniors, collegiate players and world class professionals. Dan has coached at all four Grand Slams having 7 players attain world rankings including a top 100 player.

On the collegiate level, Dan has trained multiple players who have achieved NCAA All American status. As a player, Dan was nationally ranked in both NCAA Division 1 and USTA Juniors.  He is a two-time Massachusetts State High School Champion. Dan was also the recipient of the prestigious Cross Sportsmanship Award given at the Intersectional Team Championships.


Nick Deangelis - Assistant Pro

Nick has been a teaching professional at the club since 2013, but been teaching tennis since he was 18. He is USPTA certified and enjoys teaching all ages and levels. During the summer, Nick taught with Tenacity, a non-profit organization that teaches tennis and reading to at-risk children in Worcester.

Nick grew up in Northboro playing for Algonquin, where he has now been assistant coach of the boy’s varsity team since 2014. He went on to play in college where he and his team won 2nd place in the country at the NJCAA Div. III Nationals. As a previous physics major, Nick uses his knowledge of the subject to find ways to improve efficiency in his students strokes and movement. Nick loves the sport, and is still competing regularly. His passion for the game is obvious, whether it be teaching or playing, he enjoys being on the court as much as possible.


Dennis Okoth - Assistant Pro

Dennis is originally from Nairobi, Kenya. He played Davis Cup tennis for his country from 2010-2012. Dennis played 4 years of Varsity tennis at the University of Charleston. He was a 2 time All-American and a 4-time All-conference team. His junior and senior years, he was team captain.

Dennis has been teaching tennis since 2010 joining the tennis staff at Westboro in 2015. Prior to coming to Westboro Tennis & Swim he taught tennis at the Kings Grant Racquet Club on Cape Cod. He enjoys teaching players of all ages and all levels.

Certification: ITF (International Tennis Federation) level 1

Zach O'Leary - Senior Pro/Asst.Tennis Coordinator for Men's Programs

Zach is originally from Westborough, MA and played 3 seasons at WHS from 2004-2008 winning a doubles team and individual district championship. In 2005 he attended Bollettieri Tennis Academy for his sophomore year of high school.

After high school he attended Springfield College and earned his degree in Sports and Recreation management. While at Springfield College, he started all 4 years on the tennis team and earned honors in All Conference doubles and individual team wins.

He comes to WTSC from The Longfellow club and most recently Paxton Tennis and Fitness. He worked at Paxton for 4 years in roles as Tennis Director and Junior Development Director. Zach is USPTR certified and the current assistant coach for Assumption College. He enjoys yoga, meditation, golf, and fitness when he is not on the court. Zach is also the director of the Varsity program here at WTSC.

Kaori Dence - Assistant Pro

Kaori joined the staff at Westboro Tennis and Swim Club in 2016 bringing with her many years of both playing and teaching experience.  Prior to teaching tennis, Kaori worked in Regional Sales for Cisco Systems and as an Executive Administrator for Wellington Management.

Since 2015 she has been a tennis instructor for the town of Southboro  and was responsible for organizing a very successful high level round robin at another area club.  Kaori is PTR certified.

As a player, Kaori competes at the 4.5 level playing on Westboro’s top women’s CMITA and DBH teams.  She has been a top ranking singles and doubles player in New England and has captained USTA 8.0 Mixed Teams to the Nationals.


Courteney Blais - Assistant Pro

Courteney grew up in Paxton, MA and attended Worcester Academy where she was a three sport varsity athlete. Upon graduation, Courteney attended Southern New Hampshire University where she was named second team all conference in the NE 10 for doubles play. She graduated with a degree in history from Worcester State University, and has been coaching the Lancers since 2012. Since taking over as head coach, Courteney has guided the team to LEC playoffs each year, improving the overall team record every season. In the spring, Courteney coaches the varsity girls tennis team at Bancroft School. Before coming to WTSC in 2017, Courteney worked as an assistant pro and tennis coordinator at a local club since 2014. In addition to coaching, Courteney enjoys competing at the USTA 4.5 level and playing on the top level DBH and CMITA teams.

Westboro Tennis & Swim Club is located in Central Massachusetts, convenient to surrounding towns such as Northborough, Southborough, Hopkinton, Ashland, Marlborough, Grafton, Shrewsbury, Worcester, Framingham, Holliston, and all other Central Massachusetts and Metro West communities.