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Hawaii United FC

Our Coaches

Your international coaching team includes former players from Germany, Japan, England, Brazil, Mexico, and NCAA Division 1 teams. As strikers, midfielders, and goalies, they will bring unique skills and perspectives to your training. Players will have the opportunity to train with the entire coaching team as they progress in their development.

Hawaii United Mohamed Doma

Mohamed Doma
Club Director

Mohamed has been playing and coaching soccer for over 30 years in both the United States and Canada. He is a founding member of Hawaii United FC and serves on the Board of Directors.

Mohamed has a wide range of administrative experience. Before announcing his retirement, he held a number of roles including CEO of an airline, Assistant Superintendent of Schools and Senior Partner in a multi-national consulting firm.


Gerrit Arzberger
Head Coach

Coach Gerrit comes to Hawaii United with a wealth of soccer experience.  He is the product of FC Bayern Munich Youth Academy and Spvgg Unterhaching Youth Academy.  He has also played in Germany for FC Ismaning and VFR Garching.

Coach Gerrit was a Head Coach in Germany for FC Ismaning, coaching U13s and U14s.  He is regularly called upon to provide expert coaching to multiple soccer camps in Germany and Hawaii.  He is a gifted coach with the ability to get the best out of his players.

Coach Gerrit was recruited to play at HPU on a full athletic scholarship.  He is HPU’s Team Captain and the team’s leading scorer.  Most recently, Gerrit has been voted to the Co SIDA Academic All-District 8 Division II Men’s Soccer Team with a 4.0 GPA.  Gerrit was also named to the PacWest men’s soccer first team. 

Hawaii United FC

Austin Stafford
Club Manager

Austin has been playing and coaching soccer for over 20 years. He played collegiality for Hawaii Pacific University, Concordia University-Portland, Pierce College and serves as the club manager of Hawaii United.

Austin has a master’s degree from Hawaii Pacific University in Strategic Communications and manages the daily activities of Hawaii United. He directs the coaching at Kapiolani Park and the schedule of operations for the club. 

Coach Sam

Sam Turner
Manager of Programs

Coach Sam played at Gonzaga University, a Division I soccer team, on full scholarship. He was voted Team Captain in his senior year by every member of his team, a feat that has yet to be accomplished in program history.  He graduated with a Bachelor of Sports Management and a minor in communications.

Not only has Coach Sam shown his leadership skills on the pitch, he was also a manager of a retail store in California.


Ben Wattis

Ben began his soccer career in England where he played for the Langley Hornets and Holyport FC.

Ben came to the United States on a scholarship to play for Louisiana State University of Alexandria, where he starred on the defensive line. He came to Hawaii in 2018 and has called Hawaii home ever since.

During his athletic career, Ben has won Conference, Regional and National Championships.

Hawaii United Luis Garcia

Luiz Garcia

Coach Luiz was born in Brazil and brings international experience to our team.  In his early years, he starred on several Brazilian soccer teams and was then asked to play in Poland for ARS Football U19.

He subsequently moved to the US and played for Could County Community College (NJCAA Division 1) where he was awarded, All Conference, All District, All American Second Team and named the Offensive Player of the Year.

Coach Luiz was then recruited to play for HPU on scholarship and now calls Hawaii home.

Coach Ryo Hirayama

ryo hirayama

Originally from Fukuoka, Japan, Coach Ryo began his club soccer career playing for Vittesse FC, where his team finished in 1st place in Fukuoka province.  Moving to the US, Ryo played for Phoenix College where he earned NJCAA All Conference Best Eleven and Arizona Conference All Star.

Moving from Arizona, Ryo played for California State University Fullerton before calling Hawaii home.  Ryo is currently the Co-Captain for HPU’s men’s soccer team, and his team recently achieved All Pac West Conference Team honors.

Coach Shane

Shane Graf

Shane is a USSF-D Licensed coach who was born and raised in Hawaii.  He played collegiately for California Lutheran University (D3-SCIAC) where he studied on academic scholarship and was on the radar for USL Orange County SC and the Portland Timbers.

With over 8 years of coaching experience, he has worked with keiki programs from as young as 3 years old, coached club and high school of all skill levels.  He was an assistant coach for McKinley High School Men’s Varsity program when they lifted their first OIA championship since 1977 and headed their Women’s Varsity program for 3 years.  Shane is currently involved with Hawaii’s Olympic Development Program (ODP) and has future aspirations to coach at the collegiate or professional level.

Coach Angel at Kapiolani

Angel Ortiz

Coach Angel has a rich soccer career that includes playing for FC Tucson (NCAA Division I),  Cal State Fullerton (NJCAA Division I), Phoenix College, as well as the Olympic Development Program, Arizona.

Angel has an abundance of coaching experience, coaching for  Phoenix College, OSO Academy and Cal State Fullerton Youth Camps.

As an attacking mid-fielder Angel has won district championships, has been to the NCAA final 32 team tournament and played on the OPD regional championship team.

Hawaii United


Coach Kendra brings a wealth of soccer experience to our club! She played D1 for Kent State Golden Flashes and was team offensive player of the year in 2016 and 2017 as well as first team all-conference in 2017 for her high school.

Other notable career highlights include:  USYS National Champions 3rd place in 2014 and 201;   National League Division Champions 2014, 2017 – Finalists in 2015 – 2016; and OYSAN State Cup 5 time Champions 2013-2017.

More recently, Kendra has served as a Junior Varsity Head in Kent Ohio and has completed her education degree. She is now a teacher for our DOE and calls Oahu home.

Hawaii United FC Coach

Brandon Yasue
Goalkeeping Coach

Coach Brandon is currently a student-athlete pursuing his Master’s Degree in Criminal Justice at Chaminade University. He is a 3 year starter at Chaminade leading the PacWest Conference in saves for two years.  He has earned many accolades including: graduated with honors in his Bachelor’s Degree, and most outstanding player and scholar/athlete.

He has also been a volunteer coach for the past five years specifically training defense and keepers at Kaiser High School.

Hawaii United FC

Joe Hyde

Coach Joe Hyde brings a wealth of experience and expertise to his role. His soccer journey began at Whitfield and continued his career at Mililani High School.  

Joe is currently pursuing a degree in education at the University of Hawaii. 

In addition to his pursuits in soccer and education, Joe is also a registered behavioral technician (RBT), highlighting his dedication to making a positive impact in the lives of others.


Cade Anderson

Coach Cade is a graduate student pursuing his MBA at Hawaii Pacific University. At HPU, he was voted captain of the men’s soccer team in his first year and leads huddles for the Fellowship of Christian Athletes across all sports. 

Prior to this, he graduated from Biola University, where he played a pivotal role in their two national tournament appearances and their Pac West championship in 2022.

Hawaii United FC

Megan Maloney

Coach Megan earned her degree from the University of Hawaii, Manoa, following her transfer from William Jessup University. At William Jessup, she distinguished herself as a standout center back, showcasing her talent and dedication on the soccer field.

Megan’s coaching journey started as an Assistant Coach for the Walnut Creek Surf Soccer Club at the state level premier, where she worked with players of all ages and skill levels. 

Currently, Megan is an elementary school teacher at Kaneohe Elementary School, specializing in teaching 5th grade. She previously taught at Kalihi Kai Elementary School and Ali’iolani Elementary School.


Zen Roten

Coach Zen has played competitive soccer the majority of his life.  His career began when he was the Team Captain at his high school in Palos Verdes.  Once he graduated, he played for Temple University, NCAA Division 1.

Zen most recently was the Team Co-Captain for Hawaii Pacific University along with Coach Gerrit.

Zen is bilingual in Japanese and English and was on his university’s Dean’s List 2015, 2016 and 2017!

Hawaii United FC

Kaylyn Cooper

Coach Kaylyn brings a wealth of soccer experience to our club. She played Division I for the Arkansas Razorbacks on a full athletic scholarship and was team captain for three years. Her team made it to the NCAA Tournament twice…making it all the way to the Sweet Sixteen Tournament.

Coach Kaylyn also played soccer internationally in Sweden where she played and coached for P18 Football Club.

Academically, Kaylyn graduated Arkansas with a major in Kinesiology and minor in Spanish, after which she went on to complete her Masters of Physician Studies and is now a Certified Physician Assistant.

Hawaii United

jeremy zielinski
Visiting COACH

Coach Jeremy is the current HPU star goalie who also played for Stonehill College, MA, as a freshman. During his career he was HPU’s most valuable player in 2019 and in 2021 he received recognition as West Second Team, PacWest Goalie of the Year. and PacWest First Team.