A four-time NEWMAC Women’s Tennis Coach of the Year, Carol Matsuzaki steered the Engineers to four consecutive NEWMAC Championship titles and has led numerous individuals to appearances at the NCAA Championship. Following the 2006-07 season, she was named the Division III Northeast Region Wilson/Intercollegiate Tennis Association Women’s Coach of the Year. Currently the winningest coach in program history, Matsuzaki has compiled 152 victories through 13 seasons.

Matsuzaki graduated from MIT in 1995 with degrees in biology and literature. She captained the tennis team her senior year and was the New England Women’s 8 Conference Player of the Year in 1995. Matsuzaki later became the first person in NEWMAC history to earn both Athlete of the Year and Coach of the Year honors. In addition to varsity tennis, she played on the varsity squash team.

Matsuzaki received her graduate degree in sports psychology from Boston University in 1997. In 2004, she authored the book Tennis Fundamentals. Part of the Human Kinetics’ Sports Fundamentals series, Tennis Fundamentals teaches the basic skills and tactics to help readers participate in the sport quickly.

Mason Astley is in his first season on the MIT women's tennis staff in 2011-12. He came to the Engineers from Emerson College, where he was the men's and women's head tennis coach for three years.

Astley compiled a 46-28 overall record at Emerson, including an 11-3 campaign with the women's team in 2010-11. He was named the Great Northeast Athletic Conference Coach of the Year for 2009.

Astley started teaching tennis at a summer tennis camp while in high school, and then matriculated at Swarthmore College, contributing to both the tennis and soccer teams. He earned a degree in English Literature and started working with the Arthur Ashe Youth Tennis Center in Philadelphia after graduation. That rekindled his love of teaching tennis and he began teaching and training at a club near his hometown of Worcester, Mass. He then traveled to Osaka, Japan where he taught English at a private language school. Upon returning, Mason briefly coached at Worcester Polytechnic Institute before settling in at the Mount Auburn Club in Watertown for three years.

Deciding that he had a lot to learn about the mental side of tennis, Mason then enrolled in the Boston University Graduate School of Education, where he earned a Master's Degree in counseling psychology (sport psychology concentration). Since then he has been consulting with athletes from many sports, but mostly tennis, including top-ten U.S. juniors and WTA touring professionals.

Daniel Griffin returns for his fourth year as an assistant coach with the Engineers after serving as the interim head coach during the spring of 2010. His primary responsibilities include match preparation and on-court coaching during practices and matches.

A local product, Griffin played high school tennis at the Thayer Academy in Braintree, Mass. before a brief training stint at the Saddlebrook Tennis Academy in Tampa, Fla. He continued his career at Connecticut College and upon graduation Griffin played competitively with his successes generating regional and national rankings.

Griffin is a certified member of the United States Professional Tennis Association and works at the Harvard University Business School. He is currently pursuing dual master's degrees from Suffolk University in political science and public administration.

Mariah Hoover will be starting her second year as a volunteer assistant coach with the Engineers. Growing up in Florida, she played competitive USTA tennis since middle school. As a junior player, Hoover recorded rankings in the USTA Junior Florida divisions. A six-year member of the Trinity Preparatory School girls' varsity team in Orlando, Fla., Hoover helped power her squad to five straight state championship berths. During her time with the TPS Saints, she received the Sportsmanship, Most Valuable Player, and Senior Awards from the athletic department.

A 2008 graduate of MIT, Hoover played all four years on the Engineers women's tennis team. She received a national ranking in doubles of No. 22 by her senior year and was ranked regionally in singles during her career. Hoover captained the Engineers her junior and senior campaigns and received the MVP award three years in a row. During her senior season, she received the Lindsay Morehouse Sportsmanship Award during the NEWITT Tournament and MIT's Philip A. Trussell Prize for sportsmanship.

Hoover is currently a graduate student at MIT in the chemical engineering master's program and lives on campus.