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Boys Coaches

Pat  DeBolt

Pat DeBolt


Phone: 315 719 8072

Pat has 5 years of Division I coaching experience including a National Championship with the Duke Blue Devils. He has worked with some of the best players in the world and coached alongside the top coaches in the game including Coach Tierney from Hofstra University, Coach Myers from The Ohio State University and Coach Danowski from Duke University.
Coach DeBolt has extensive experience working with the top select lacrosse programs around the country and he is bringing his knowledge and expertise to Sentry.


  • Home Town: Waterloo (New York)
  • College Undergrad: D1- Hofstra University (Long Island New York)
  • NCAA College Coaching Experience: Duke University, Hofstra University, The Ohio State University.
  • High School Coaching Experience: Parish HS (TX) Flower Mound HS (TX)
  • Awards & Achievements:
  • 2010 National Champion with Duke University 
  • 2X CAA Champion with Hofstra University
  • 5 NCAA Appearances
  • 2013 State Championship with Flower Mound High School
  • 2013 Texas assistant coach of the year
  • 2014 Bob Patterson Award 
  • 2015 DFW Keeper of the Stick Award
  • First ever 3X selection for NY Empire State Games
  • Shutout Story: (Why Pat DeBolt Coaches and Loves Lacrosse) 
Joe  Kostolansky: 

Joe Kostolansky: 

Sentry Coach

Phone: 650-515-0273

Joe Kostolansky: 

Joe Kostolansky: 


  • High School: Corning East High School, Corning, NY 
  • College: Hofstra University, Hempstead, NY 

Major League Lacrosse Experience: 

  • San Francisco Dragons  *21 G, 8 A
  • Boston Cannons  (Major League Lacrosse) *21 G, 8 A
  • Rochester Rattlers (Major League Lacrosse) *21 G, 8 A

Coached NCAA Lacrosse Experience: 

  • Nazareth College
  • Skidmore College
  • University of Vermont

Lax Dreams Lacrosse Academy LLC 

  • Founder & Director-  Lax Dreams offers travel teams for boys and girls 3rd -12th Grade


  • 2000 NCAA Tournament Team and America East Conference Champions; Leading Assists
  • 1999 NCAA Quarterfinalist Team
  • 1999 Hofstra University Play of the Year Award recipient
  • 2001 USA World Team Try Out Invitation
  • 2000 & 2003 1st team All-League Selection America East and Colonial Conference 1998 High School North/South All American Selection
  • 1998 NYS Section IV 1st Team All-League Selection and Section IV MVP
  • 1998 NYS Class “B” Semi-Finalist Team 20-1 record
  • 1998 All-State Football Selection
  • 1997 NYS Section IV 1st Team All-League Selection and Section IV MVP
  • 1997 NYS Class “B” Finalist Team 21-1 record
  • 1996 NYS Class “B” Finalist Team 22-1 record and All-League Selection 

Harley Brown

Coach Harley was raised in Connecticut where he was fortunate enough to play for some stellar programs which allowed for a successful recruiting process and the title of HS All-American. At Fairfield College Prep he helped the Jesuits win 3 State Championships, and later attended Deerfield Academy for a PG year to gain additional recruitment exposure. Afterward he played for Coach Tierney at the University of Denver to help the Pioneers attend one quarterfinal and two semifinal appearances. 

Harley has enjoyed refining his coaching methods across all age groups over the past 10 years. As he’s moved from state to state, different Summer clubs, school teams and individuals have rewarded him with their perseverance. Harley is especially thrilled to coach with Sentry Lax, and hopes to serve their community well.

Ryan  Mulka

Ryan Mulka

Sentry Coach

Coach Ryan is originally from Seattle Washington. He was a 2x All-state section at Close Defense while playing for Dallas based Flower Mound. In 2013 he helped win the programs first State Championship. In 2014, Coach Ryan went to NJCAA power house Onondaga Community College in Syracuse N.Y., winning his 1st National Championship. In 2015, he transferred to Division 2 powerhouse Limestone College, based out of South Carolina, wining another National Championship the same year. In 2016 he made the transition to LSM and became a starter while leading the team to its 3rd consecutive NCAA Finals appearance, although being upset in the Championship game. His senior season he earned All Conference and 3rd team All-American honors, while leading the team in GB's, 2nd in CT's and to another National Championship win in 2017. 

  • National Champion with OCC
  • 2X NCAA Champion with Limestone College
  • 4 NCAA Consecutive Appearances
  • 3 year record of 66-3 while at Limestone
  • 2013 State Championship with Flower Mound High School

Available for private or group lessons, please call/text 425-308-6904 or email to arrange.

Michael Diener


Phone: 561-281-8921

Coach Diener recently graduated from Hofstra University where he was a three year starter. During his time there, he had the opportunity to play under some of the best coaches in the game, with some of the best players in the game, each with a different style. For the past three years, he has been coaching select lacrosse in Long Island and developing players' knowledge and techniques to mold them into better lacrosse athletes. 

College: D1- Hofstra University

  • 3x CAA Tournament Appearances
  • 3x CAA Commissioner’s Academic Award Recipient
  • Nominated for the 2017 USILA/Nike North vs. South All-Star Game
  • Earned team ranking of #2 in the country as a senior

High School: Pine Crest School FL

  • 2x Team captain
  • 4x District champion
  • 2x Regional champion
  • Iron Panther Award for leadership and influence in the weight room

Available for private or group lessons, please call 561-281-8921 or email to arrange.

D. Demetrius Parker

defensive coach

Phone: 315-420-4507

Donald Demetrius Parker is originally from Syracuse, New York.  He graduated from Nottingham High School where he was a 4 time captain for his football team, 3 year captain for basketball, and 4 year captain for lacrosse.  Demetrius started his college playing career at NJCAA powerhouse Herkimer County Community College.  After completing his playing career for Herkimer, coach Parker went on to play for Division 3 Medailles College in Buffalo, New York.  Coach Parker brings his defensive knowledge playing under proven coaches like Rich Dommer at Herkimer and Chaz Bulera at  Medailles College.  Coach Parker brings vast knowledge of coaching defensive techniques to our program.  He specializes on the defensive side of the ball teaching both short stick and long stick defensemen.  Sentry Lacrosse is proud to have one of the best Defensive Coaches in Texas working with out boys to develop strong team and individual defensive skills.

Peyton  Myles

Peyton Myles

Sentry Coach

Phone: 585-736-8413

Jarrett Moffitt

Jarrett Moffitt


Phone: 646-522-5186

Jarrett spent 8 years coaching at the collegiate level, both NCAA and NJCAA, holding various positions.  He started out as a volunteer assistant coach at Alfred University and by his second year he was a head assistant.  The following year Jarrett moved to the NJCAA ranks where he coached the defense as the head assistant for the State University of New York at Alfred.  While the assistant at SUNY Alfred, the school made the transition to NCAA Division III.  Jarrett spent the next 2 years as the head assistant, the first year as defensive coordinator, the second and most recently, as offensive coordinator.  Jarrett has also coached at 16 Army Lacrosse Camps, 8 Hobart Lacrosse Camps, and 5 Corning East Lacrosse Camps.

Before beginning his coaching career, Jarrett spent 2 years playing Division I lacrosse at Hobart College and 1 year playing Division III for Alfred University.  An ankle injury forced him to miss his junior season.  While earning his Varsity Letter his freshman year at Hobart, the team also earned an NCAA Tournament appearance in 2004. During his one season at Alfred University he earned Second Team All Empire 8 as a midfielder.  Jarrett scored 26 goals and handed out 7 assists while picking up 50 ground balls.  The goals and ground balls were good enough to lead the team.   

Prior to college, Jarrett became his high schools all-time leading scorer and was a member of Corning West’s first 2 sectional championships.  Following his senior year of lacrosse he was invited to play in the annual North/South High School All American game.  Jarrett was also teammates of fellow Sentry Lacrosse coaches, Pat DeBolt and David Streeten, earning a silver medal in the 2002 Empire State Games. Jarrett’s parents, Thomas and Jeannette, still reside in the Elmira, NY home they raised 2 children in.  Jarrett’s sister, Kasey, lives in Levittown, PA with her husband and 3 children.