Seacoast Mavericks

Front Office

Dave Hoyt - Principal and General Manager


Dave Hoyt is the Principal and General Manager of the Seacoast Mavericks collegiate team and owner of the USA Mavericks Baseball Club, as well as proprietor of USA Training Center.  Dave played professional ball for the St. Louis Cardinals and Minnesota Twins organizations after a stellar career at the University of New Haven and Yarmouth Dennis Red Sox of the Cape Cod League.

With a vision for providing high quality baseball instruction in a state-of-the-art environment, Dave founded the USA Mavericks Club and USA Training Center nearly ten years ago, forever changing the landscape of baseball in the greater Seacoast area.  Now home to over 120 top athletes and 16 professional instructors, the USA Mavericks Club hosts six age divisions, U12 through U18, and is considered the premiere youth baseball program in New Hampshire and Southern Maine.  The Seacoast Mavericks represent Dave’s franchise in the Futures Collegiate Baseball Leagueof New England(FCBL), a wood bat collegiate league that provides elite collegiate athletes the opportunity to compete in a Minor League format each summer.

Over the last four years, Dave’s extensive networking experience has had a direct result in Mavericks high school players being awarded a combined $5.3 million in academic and athletic scholarship money at colleges and universities all over the country.

Dave Hoyt was drafted into the MLB in 1981 as an 18th round pick by the Minnesota Twins.  He spent the next seven years playing professional ball for the Twins and the St. Louis Cardinals before finishing his career in Italy with the San Marino Hawks.  Dave has since been a coach, instructor, associate scout for the St. Louis Cardinals and mentor to countless middle, high school, and college athletes.

Dave lives in Rochester, NH with his wife Diane


Nick Leishear - Assistant General Manager

Nick is the Assistant General Manager of the Seacoast Mavericks collegiate team. He comes to the Mavericks after studying Sport and Recreation Management at New England College, where he graduated Magna Cum Laude and received the Most Outstanding Student Achievement Award for his major in his senior year. Nick also pitched for the Pilgrims baseball team during all four years of his stay at NEC.

While attending NEC Nick also became a published writer, penning the lead articles for Edge Sports NH, a state wide distributed magazine focused on outdoor sports.  After demonstrating leadership abilities while writing for Edge, he was invited to be both a writer and copy editor for The NewEnglander, his college newspaper.  Along with a degree in Sport and Recreation Management, he left his alma mater with minors in Business Administration and Sport Communication.

Growing up in the Seacoast area Nick spent many hours training and receiving instruction at USA Training Centers.  A Mavericks Club Program alum as well, Nick played on the U13 through U16 teams while attending Portsmouth High School. Nick brings a wealth of experience in managing and marketing sport events, as well as an understanding of the pulse of the baseball community in the Seacoast area. 

Mark Constance - Director of Maverick Baseball Operations

Mark Constance is a part of the Maverick program in conjunction with his long time career in the movie business. Constance is a native of the New Hampshire seacoast and moved to Los Angeles in 1989 to pursue a career in the entertainment business.  Constance and wife Bethany returned to New Hampshire to raise their family in Brentwood.  He has two children, daughter Eliya-Quaye and son Caleb.

His organizational skills have been lauded in the Hollywood film community and he brings those traits to the Maverick program.

Constance is the General Manager and Director of Operations for the USA Mavericks Baseball Club program where he oversees 15 teams with 180 players ranging from 10U to High School.  Constance is on the Board of Directors of the New England Elite Baseball League.

Constance is a partner in a713production with his wife Bethany and has been a member of the Director's Guild of America since 1993.

Mark's film production creidts include two films nominated for The Academy Award Best Picture: Being John Malkovich and Captain Phillips, the Golden Globe and Emmy nominated mini-series Olive Kitteridge, Terminator 3: Rise of the Machines, The Company Men, Charlie's Angels, The Last Castle, Bad Boys II, Mission Impossible 2 and Fever Pitch. Mark produced the films The Sensation of Sight, Killing Dinner and Crooked Lane and directed the film Trouble from his original script along with numerous commercials and music videos.

Sean Evans - Field Coordinator



Sean is a native of Buffalo, NY and played his high school baseball for Bishop Timon before moving on to play at Jamestown (NY) Community College and then the University of South Carolina Game Cocks.  Sean was drafted in the1991 Major League Baseball Amateur draft by the Pittsburg Pirates in the 23rd round.

Currently, Sean is a Portsmouth (NH) police officer as well as serving as an evaluator of potential players for the Seacoast Mavericks. 

Contact Sean at -


Jarrett Daniel - Community Relations

Jarrett Daniel has over 16 years of experience in the hospitality industry. Throughout his over decade and a half experience he has worked with over 300 non-profit organizations, raising upwards of $6 million for their cause.  His specialties include Customer Service, Client Care Management, and Public Relations.  Organizations include but are not limited to:

  • Education
  • Civic
  • Athletic franchises
  • Terminal illness
  • Domestic violence
  • Special needs

During home games, Jarrett is a one man entertainment center.  Famous for his on the field announcements and game day activities; if Jarrett is at Leary Field you can be sure he has two things: a microphone and a smile.  Jarrett’s reach does not stop there however.  He is also involved in sponsorship and promotional aspects of the organization as well.

Jarrett is also an emerging entrepreneur in the latest phenomena of finding solutions that balance work and life. His company, Daniel Assistants Group, has quickly become the preferred choice for busy professionals in the Seacoast area.  It is a full-service project management company specializing in a variety of services.  His clients include a list of Who’s Who from the transportation, restaurant, electronic, sports, non-profit and medical industries.  They like to think of him as a Personal and Professional Project Manager.  When he is not working on enhancing his client’s personal and business life, you can find him volunteering or coaching youth athletics in the city of Portsmouth, NH. 

Jarrett lives in Portsmouth with his wife Courtney and their children.

Do you love baseball?  Are you interested in helping to shape a young adult's career, potentially a professional baseball career?  If you answered yes, to these questions, you are the perfect candidate for a host family!  The Mavericks are looking for host families in Portsmouth, and surrounding communities, for the 2015 season.  There will be approximately 20 players coming to the Seacoast that need host families for the 2015 summer.

If you are interested, please click here.