About Us

Our mission, staff, and testimonials.

 

Our Mission

We were fortunate to have coaches who prioritized player development, and we are proud products of those environments.

Deemer started First Class Lacrosse in 2018. Matt Dunn, a high school teammate and co-captain on the 2012 Loyola Blakefield team that went 15-4, joined shortly after. Deemer won two national championships at Duke and went on to play professionally. Matt played at Maryland, won Team USA Gold, and still plays pro today.

At Duke and Maryland, we both started at the bottom of the depth chart. We weren't the biggest, fastest, or most talented guys in the room. What we had was a willingness to put in extra work after practice and sit through film with our coaches. Over four years, we turned into completely different players than the ones who showed up freshman year.

That's the experience we bring to your son, daughter, or team. We know what player development looks like because we lived it.

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First Class Lacrosse

Meet Our Team

1

Deemer Class

Founder
Duke University 2016

A 3x US Lacrosse All-American and Under Armour All-American, Deemer has competed at every level of the game—from the MIAA, to Duke University, to the professional ranks. Widely known as one of the game’s premier outside shooters, Deemer has earned a national reputation for developing offensive players through elite-level instruction focused on shooting, dodging, stickwork, re-dodging, IQ, and offensive systems.

#10 Ranked Recruit in 2012
2x National Champion
Duke Midfield Record: 50 Goals in a Season
Coached at USC (D1) | 1x Pac-12 Champion

Matt Dunn

Co-Founder
University of Maryland 2016

A 2x captain and All-American at Maryland, Matt Dunn is one of the top defensemen of his generation. During his time with the Terps, Dunn helped lead Maryland to multiple Final Four appearances, earned First Team All-Big Ten and All-American honors, and was named Big Ten Defensive Player of the Year. Known for his leadership, discipline, and elite-level positioning, Dunn has carried that success into a decorated professional career in both field and box lacrosse.

7x PLL All-Star
3x PLL DPOY
2x PLL Champion
Gold Medalist with Team USA
Stephen Rehfuss 2025

Stephen Rehfuss

Men's & Women's Offensive Coach
Syracuse University 2021

A standout attackman and team captain at Syracuse, Stephen Rehfuss led the Orange in assists for four consecutive seasons, finishing his collegiate career ranked ninth in program history with 110 assists. His exceptional vision and playmaking ability earned him multiple accolades, including All-American honors and a Tewaaraton Award nomination. Rehfuss has seamlessly transitioned to the professional level, continuing to showcase his offensive prowess and versatility.

Syracuse All America Attackman
2021 Syracuse Male Athlete of the Year
Top 10 Assists All Time at Syracuse
2021 PLL ROY Finalist
 
3-1

Adam Lamberti

First Class Lacrosse
Director of Media

Growing up in Bel Air, MD and attending the McDonogh School, lacrosse has been a part of Adam's life for as long as he can remember. As a junior in 2018, Adam was coached by Deemer at McDonogh for a year and began working part-time for FCL in 2020 and then throughout college. Adam attended Washington and Lee University and helped the Generals reach the Elite 8 for the first time in 20 years as a senior captain in 2023. After graduation, Adam took on a full-time role with FCL and is excited to continue giving back to the sport by working closely with the team to create content for social media and FCL's online platforms.

FCL Kyle Hayes

Kyle Hayes

First Class Lacrosse
Director of Development

Kyle Hayes joins First Class Lacrosse with more than 10 years of NCAA Division I and Division III coaching experience, including roles as a head coach and as an offensive, defensive, and recruiting coordinator. Most recently, he served as the Offensive Coordinator at Long Island University, helping lead the Sharks to the winningest Division I season in program history and a 2026 NEC Championship Game appearance. During his time at LIU, Hayes helped develop 13 All-Conference selections while directing an offense that ranked among the nation’s top 20 in offensive efficiency.

At FCL, Hayes focuses on coaching and mentoring athletes while helping build the Athlete Program and FCL Coaches Community.

4

Tim Muller

First Class Lacrosse
Defensive Coach

Coach Muller is a Garden City, New York native where he attended Chaminade High School. While playing at the University of Maryland, Muller was a 2017 First Team All-American, the 2017 Big Ten Defensemen of the Year, the 2017 Schmeisser Award Winner, the 2017 NCAA Tournament's Most Outstanding Player and a 2016 Third Team All-American.

Tim has gone onto to have a strong professional career starting 3 seasons with Coach Dunn as a defender for the PLL Whipsnakes. Tim's IQ, work ethic and ability to communicate off ball concepts and on ball concepts for individual and team defense make him the consummate FCL and BIC coach.

Testimonials