Coaching Staff


La Jolla United wpc’s dedicated team of coaches are here to advance your athlete to their next level of water polo success. Combining for over 100 years of coaching and playing experience.

All our coaches are SafeSport certified, members of the Positive Coaching Alliance and adhere to the USA Water Polo coaches code of conduct.

James Fales

Senior Academy Teams

San Diego State University – BS Excercise Physiology, ATC

Head Coach Senior Academy – 18u Boys


Coach Fales founded The Bishops School and San Miguel water polo programs in 1987 and was a core faculty member, coach and aquatics director for 30 years. His leadership earned the team 19 City League titles and graduated over 50 High School All Americans. During his tenure, The Bishops School won San Diego Section CIF titles in; 1992, 1997, 2002, 2003, 2004, 2005, 2006, 2008, and 2010. Coach Fales was voted CIF coach of the year 9 times.



University California San Diego – BA Human Development Sciences

Fresno Pacific University- MA Kinesiology: Emphasis in Physical Education

Head Coach Senior Academy – 16u Boys

Assistant Coach Senior & Age Group Academy- 16u Girls & 10u CoEd


UCSD Bio and Media // Watch Coach Arman at work – Highlights  // Highlights

Arman Momdzhyan contributes 15 years of national and international water polo experience to La Jolla United wpc. A four-time college All-American and recent UCSD graduate who was named the Head Coach of San Diego Miramar College Men’s Program in the Spring of 2019. Arman’s most recent water polo accomplishments include; 2-time ACWPC Division II Player of the Year at UCSD, 2-time ACWPC All-American and a 2-time (CCCAA) All-American at LAVC. Coach Momdzhyan was selected to compete in the 2017 USA National League with team USA University. Coach Arman also led his San Diego Miramar Jets Men’s Water Polo team to the PCAC Conference Championship game for the 1st time in school history in the Fall of 2021. He was named Co-Coach of the Year for the PCAC Conference in 2021-2022.

Arman competed at Glendale High School where he helped his team win three Pacific League titles, as well as the 2013 CIF title. Arman was a 3-time all CIF player, 2-time All-American, 2-time All-Pacific League MVP and compiled 451 goals in his 3 year high school career. Coach Momdzhyan was a captain his two-years under the helm of Jim McMillian & Jason Falitz at Los Angeles Valley College, where he led his Monarchs to back-to-back undefeated Conference championships, and a 3rd place standing in the Southern California regionals. His leadership role continued under the guidance of Denny Harper, after being named the 1st sole captain in UCSD history in 2017.

Arman hopes to provide La Jolla United athletes with the opportunity to reach their full potential, providing a training environment that will best facilitate in their personal growth and development. He strives to provide his passion and love for the game that helped mold him throughout his journey from a small water polo club, to community college, and at one of the most competitive levels in the sport.

Greg Olson

18u Boys Co-Head Coach

Stanford University


Cell Contact: 619-244-4734

Coach Olson grew up in the swimming and water polo world in Orange County, California, starting at six years old. As an age group player, he played with North Orange County Water Polo and Trojan Water Polo club teams at multiple Junior Olympics. He represented the United States in junior national competitions at home, in Europe and Cuba. He then moved to Palo Alto, California to attend Stanford University where he played for four years and competed in the NCAA tournament each year.
After graduating from Stanford, Coach Olson eventually settled in San Diego and he has continued to compete with Sunset Water Polo, representing the team at numerous Master’s Nationals tournaments and championships. Coach Olson has coached 12u, 14u, 18u boys and 14u, 16u and 18u girl’s teams in La Jolla, including Junior Olympic tournaments. Coach Olson enjoys helping athletes improve and reach their highest potential both as individuals and teammates, and he is looking forward to continued success with La Jolla United.




Head Coach Age Group Academy- 10U COED & 12U BOYS

Assistant Coach Junior Academy – 14u Boys


Introducing the newest addition to our coaching staff, Stefano Mattesini from Florence, Italy. Stefano grew up playing water polo at the age of 9 for Etruria Nuoto. An athlete from Rari Nantes Florentia Waterpolo, who he competed on 16u/18u travel team. Stefano played semi-professionally for CUS Firenze in B (National Division) and C (Regional divisions) from 1999-2008. He moved to the U.S in 2009 and has pursued a career in aquatic coaching since, playing in successful coaching roles for local clubs Del Mar & Bay Club. 

Coach Stefano will be heading our 10u CoEd and 12u Boys programs. He will also be assisting with our 14u boys academy, emphasizing a streamlined approach to the development of all La Jolla United youth athletes. 




Head Coach Senior Academy- HIGH SCHOOL GIRLS


Coach Dana Ochsner is a San Diego native, born in Oceanside, Ca. She has 18 years of national and international water polo experience including 10 years of coaching. 

She competed collegiately for four years at UC Berkeley (2010-13).  In that time, her team won the 2011 Mountain Pacific Sports Federation (MPSF) championship. They finished third in the NCAA Tournament in her freshman season (2010) and second in her sophomore year (2011).  In her time at Cal she was named a 3 time All-American, as well as making the All-MPSF and All-NCAA teams, In her final year she was named the team captain and MVP.

Ochsner was selected and competed as a member of the USA Water Polo’s Women’s Cadet National Team from 2005-08 and the US Junior National Team from 2009-12.  As a member of the US Junior National Team she competed and won a gold medal in the 2010 Global Championships and participated in the 2011 Junior World Championships. Professionally, Ochsner played in Seville, Spain for Club Water Polo Dos Hermanas in 2013 and 2014 and followed that up in 2015 with a season with UTS Balmain Water Polo Club in Sydney, Australia.

During her playing career and after its conclusion, she has coached at the high school, club, junior college and now Division 1 collegiate level in the San Diego area. She was the head girl’s coach at El Camino in 2016 and led that squad to CIF-San Diego Section Open and Division 1 playoff appearances which included a championship in 2019. She was named the girl’s head coach for the North San Diego Stars Water Polo Club and from 2015-17 she was an assistant coach for the men’s team at Miramar College.  

Currently, Ochsner is heading into her 3rd year as the San Diego State women’s assistant coach. Last season Ochsner helped coach the team to an in-season conference title as well as an appearance in the conference tournament championship.
Ochsner earned a bachelor’s degree in political science from UC Berkeley in 2013 and a master’s degree in education from Grand Canyon University.

Lorenzo Innocenti

14u Boys Head Coach & 12u Boys Assistant Coach

Florence, Italy


Cell Contact: 619-655-1042

Lorenzo Innocenti from Florence, Italy. Lorenzo grew up playing water polo at the age of 8 for Rari Nantes Florentia and he competed on the 10u/12u/14u/16u/18u and for the Junior National Italian Men team. Lorenzo played professionally for Rari Nantes Florentia in A1 (National Division) from 1999-2005 and Fiorentina WaterPolo in A2 and B (National divisions) from 2006-2010. While in Italy he worked as swim instructor from 1999-2003, assistant swim coach 2000-2007 and water polo coach from 2002-2010. Lorenzo moved to the U.S in 2012 to pursue his engineering where he currently works full time as Engineering Manager at Apple.

Rachel Lobato: Age Group Academy Teams

Harvard University – Human Evolutionary Biology

Head Coach Age Group & Senior Academy – 14u Girls
Assistant Coach Age Group Academy- 12u Girls


Rachel Lobato was born and raised in San Diego, and learned how to play water polo at La Jolla when she was 11 years old! She played at the Windansea water polo club through high school, and was a 4-time varsity letter winner at Mission Bay High School. At Mission Bay, Rachel lead her team to 4 consecutive league wins and CIF appearances.

Rachel competed as a Div 1 athlete all four years at Harvard while earning a degree in Human Evolutionary Biology and a minor in Spanish Language. Rachel taught English in Spain for one year, while playing on the club water polo team C.N. Reales in Tenerife. In addtion, Rachel continues to coach Miramar College and is returning for her second women’s varsity season at La Jolla High School. Rachel recently completed her M.Ed. and teaching credential at UCSD and will be teaching chemistry at La Jolla High School.

Jacob Schrimpf

16u Boys Co-Head Coach

Pepperdine University


Cell Contact: 858-692-6831

Coach Jacob grew up in San Diego and has an extensive swim and water polo background. Coach Jacob was an All-American attacker during his high school career at Cathedral Catholic under coach Brett Ormsby prior to competing for the Pepperdine Waves from 2011-2014. Jacob played key coaching roles at Cathedral Catholic high school and Del Mar wpc over the last 4-years and is excited about continuing to develop local San Diego athletes.




University of California San Diego- Human Development Sciences

Head Coach Junior Academy Teams: 14u Boys Gold
Assistant Age Group Academy Coach: 12u Boys


At 21 years old, Nathan Ellinthorpe has been involved with the water polo community for the vast majority of his life. He spent his formative years playing in Long Beach for the prestigious United Club, garnering numerous Junior Olympics Medals along the way.

At 13, Coach Nathan moved to Northern California. During his years playing for the varsity team at Granite Bay High School he collected the following accolades: 2nd Team All-SFL 2015, 1st Team All-SFL 2016/2017, 2nd Team All-CIF 2016/2017. In his senior year, Nathan led his highschool team to the SJS CIF Section Championship. Nathan also spent his summers playing for Alumni Water Polo Club, playing with/against some of the best players in the world.

Hannah Lobato: 12u Girls Head Coach & Assistant Age Group Coach

University of California Santa Barbara 

Head Coach Age Group Academy: 12u Girls
Assistant Coach Age Group Academy: 14u Girls








Hannah Lobato was born and raised in San Diego, California and first learned how to play water polo at the Windnsea water polo club when she was 8 years old. She continued to play for the Windnsea club for 6 years until she started high school at Mission Bay. There, she was a four time varsity letter winner and led her team to four CIF appearances. 

As the younger sister of La Jolla United’s current 14U Girls & HS Girls head coach, Rachel Lobato, Hannah has helped her sister lead practices with various teams at La Jolla United, La Jolla High School, and Miramar College. She looks to provide our youth girls with the skills necessary to compete in high school, college and beyond.

Noah Keoni Tiu

12u & 14u Boys Assistant Age Group Coach

CSU San Marcos- Psychology

University of the Pacific & Long Beach City College


Noah Tiu is a local retired water polo player who started his athletic career at the age of 11, playing for a handful of local club teams. Noah was a Junior Olympic champion for the 14u division and was named to the first ever Developmental National Team. Noah also played at Cathedral Catholic where he was a 4-year varsity player. During his high school career he helped his team win 4 CIF championships and was an All-County player his junior and senior years. Noah redshirted at the University of Pacific his freshman year of college but left and played a season at Long Beach Community College, where he helped his team get third in the State tournament. Noah returned home to San Diego to begin to pursue a career in coaching and education.

For the last two years Noah has been apart of the Canyon Crest Academy coaching staff which made its first Open Division appearance last year, where he also played various coaching roles at the club level. Besides water polo, Noah is currently attending CSU San Marcos where he is majoring in Psychology and is hoping to become a High School Counselor.

John William Bryant

14u Boys Head Coach & HS Boys Assistant

San Pasqual HS & Palomar College


   Coach JW began his aquatics career as a club swimmer at the age of 7. He started playing water polo at the age of 13. He immediately feel in love with the game and continued to become more involved as he grew older. At San Pasqual High school Jw was a four year varsity starter. His senior year he broke the school record for goals in a season with 130+ goals while leading his team to a top 8 finish in division 1 CIFSD. After high school he continued his playing career at Palomar community college.
  At the age of 16 Jw started his coaching career at the 10 & under age group with Riptides WPC. He continued to coach 10u & 14u for a couple years and then at the age of 19 he was given the chance to become to head coach/administrator for Riptides while becoming the main coach for the 16u/18u boys program. From 2014-2018 Jw took an 18u boys team to Junior Olympics three times and in 2017 his 18u team won the gold medal in the Bronze division of JO’s.
  After a successful stint at Riptides, JW was offered a chance to continue his coaching career at Del Mar WPC, where he stayed for two seasons. Jw is currently the head coach for Classical Academy high school in Escondido. In his first season as head coach in 2018 they went on to become division 3 CIF champions.
 He uses his wealth of playing and coaching experience to teach his players the right way to play the game. Teaching young players how to train and understand the game is a passion of Jw‘s and he is looking forward to bringing that energy to the La Jolla United program. 

Joey Kienle

Assistant Head Coach HS Girls Academy

Whittier College, B.A Philosophy & French

National University, M.A Special Education
Whittier College Bio & Statistics

Coaching Highlights
Head Coach of Clairemont High Boys and Girls 2012 – present
CIF Champion 2017- Girls and Boys
2013 and 2017 League Champion- Boys
2014, 2015, 2019, 2020 League Champion- Girls
Playing Highlights
4 year varsity starter at Mission Bay
2 year varsity athlete at Grossmont College (2008-2009)
2 year varsity athlete at Whittier College (2010-2011)
Joey was born in Philadelphia and is currently a Special Education teacher at Lincoln High School. He was recently engaged to Cal alum and SDSU women’s assistant coach Dana Ochsner. Joey currently competes with Sunset’s Master’s 30+ and is entering his 8th year coaching at Clairemont High School. 

Alessandro Ipson

10u CoEd & 12u Boys Assistant Age Group Coach

Canyon Crest Academy High School


Cell Contact: 858-280-4179

USA Water Polo Academic All-American (2019-2021)

2021 Canyon Crest Academy Water Polo Team Captain
Lifeguard at the Bay Club Carmel Valley

Ari Wayne

12u Boys Assistant Age Group Coach

University of California, San Diego


Cell Contact: 650-862-2920

Competed at the collegiate level at UCSD
4 year Varsity athlete and team captain at Gunn High School in 2015
Led team to CCS Finals and earned league MVP Honors