Aquatics Director & Head Coach - Sean Quackenbush

Sean Quackenbush is an accomplished and experienced athlete and coach. As a teenager, Sean was the Minnesota High School State Champion in the 100 yard butterfly. He was a three-time Big Ten Champion at the University of Minnesota, winning titles in the 100 butterfly, 200 butterfly, and 400 medley relay and breaking several Big Ten records. Sean is a 12-time All-American and a University of Minnesota Swimming Hall of Fame inductee. Sean was named to the USA National Swim Team and swam in the US Olympic Trials, World Cup Games, and the US Open, where he was a Gold & Silver medalist.

In addition to being a highly decorated swimmer, Sean is also an accomplished coach and leader. In Minnesota, he coached both high school and summer rec teams. Following his competitive career, he was an Assistant Coach for the Division 1 swim program at Michigan State University. He holds a MS in Sport Psychology from MSU and has hosted dozens of swim clinics and taught private lessons for swimmers of all ages. In 2015, Sean took over as Head Coach at Gehringer Park Swim Team in Concord. He helped grow the program and triple the number of Contra Costa County Qualifiers from the prior year, leading the team to improve their standings in the County meet by 20 places. Sean has recently left his corporate position at Kaiser Foundation Research Institute to follow his heart. Sean is passionate about transforming good swimmers to become great swimmers. But he also believes that swimming teaches important life lessons like working hard, setting and striving for goals, competing, and forming friendships that last a lifetime. Sean lives in Concord with his wife Natasha and his two sons.


Head Age Group Coach - Ethan Schnell

Ethan Schnell brings over 25 years of swimming and coaching experience to the HOX.  Ethan began his coaching career at Bishop Estates Swim Team in Concord. He then took a position at Clayton Valley High School as the Junior Varsity coach, rising to head coach after just two years. Under his leadership, both the boys and girls team won 4 consecutive league titles, sending over 18 swimmers to the North Coast Section Championships per year.

Coach Ethan currently teaches Honors/AP Chemistry at Dougherty Valley High School. In 2007, he built the swim team program from inception and has been the Head Coach of Dougherty Valley for a decade.  With consistent growth and improvement, Dougherty sends 18+ swimmers to NCS every year and a few relays/individuals to the CA State Meet consistently. Coach Ethan has developed multiple league champions, NCS finalists, All-Americans, and several swimmers competing at the State Meet. As an athlete, Ethan swam competitively from the age of 7 for the Bishop Estates Barracudas (formally the Beavers) summer rec team. He was a four-year varsity swimmer in high school and a member of the football and wrestling teams. Ethan also swam in college at the Division 1 Level for Cal Poly, San Luis Obispo. Ethan is currently a ASCA Level 3 coach and working toward his Level 4 and Level 5. Ethan is married to Becka and has two children - Tyler and Lexi.


Head Assistant Coach - Georgi Cappelletti

Georgi Cappelletti has been with the HOX for 24 years; 14 as a swimmer and this will be her 10th year as a coach. Her accomplishments in the water include breaking multiple records: the HOX 13-14 50 breast team record, in addition to the 15-18 100 free record at County, Woodlands and VSA League Championships, which held for several years. She is still the current HOX team record holder in the 100 free.  Coach Georgi attended Monte Vista High School in Alamo and was a member of both the Varsity Swim Team and the Varsity Water Polo Team. During her senior year of high school, Georgi’s 200 free relay broke the meet record at NCS.  She went on to play Division 1 Water Polo for two years at University of California, Berkeley and graduated in 2011.

She loved growing up on the Blackhawk pool deck because of the fond memories created, life-long friendships formed, and personal goals achieved. It is her desire to create that same experience for every HOX swimmer she coaches. Georgi brings a tremendous level of dedication and spirit to the team, and leads the Hike to Hawk during Spirit Week each summer. She loves coaching kids of all ages, but her specialty is leading the 8 and Unders and instilling a foundation for a long-term commitment to swim and love for the team. She completed her teaching credential in December 2013 and has worked at Tassajara Hills Elementary School for the last 4 years.


Assistant Coach & Mini HOX Lead Coach - Emma Sol

Emma Sol began swimming competitively at age 4. She spent 5 years with the Club Sport Marlins, before making the move over to the HOX at age 9. Since then, Emma has spent 13 years with the HOX as both a swimmer and a coach, and is excited to spend another summer on deck! Emma began her coaching career 7 years ago as a junior coach for the Mini HOX, and has continued to work as a lifeguard, private/group lesson instructor, Mini HOX lead coach and Assistant Coach. Emma has worked with swimmers of all ages and skill levels, and specializes in breaststroke, butterfly and IM. In addition to swimming, Emma recently has graduated from Texas Christian University, with a BS in Sports Broadcasting and English, and an emphasis in Women & Gender Studies. Emma is now preparing to pursue a JD, and was accepted to law school for the Fall 2018 semster.





Assistant Coach - Melissa Keao

Aloha HOX Families! I am excited for my second summer at the HOX pool and first summer as a a full time coach. I am originally from Kaneohe, Hawaii, I started swimming competitively at the age of 5 and continued through high school. I moved to Southern California to attend Whittier College. My favorite swim event was the 100 Breaststroke and 200 Breaststroke. I swam and played water polo throughout college while receiving my BS in Kinesiology with an emphasis in Physical Education. After graduation, I attended California State University, Long Beach and received my Single Subject Credential for Physical Education. From the age of 18 until present, I have held several jobs in the Aquatics field teaching swim lessons and managing swim school facilities. Currently, I teach Physical Education and am the Head Swimming/Diving Coach at Mission San Jose High School in Fremont. I love inspiring kids of all ages and abilities to learn to love and be safe in the water.


Assistant Coach - Will Vogeley

Hi my name is Will Vogeley. I graduated in 2017 from Monte Vista High School where I was a varsity swimmer and water polo player. I’m currently studying at Indiana University’s Kelley School of Business where I’m also a member of the water polo team. I started swimming for the HOX in 2004 and was lucky enough to graduate last summer as a swimmer. Last year I enjoyed coaching for the HOX during Spring Clinic and I’m excited to continue to coach this summer. I look forward to supporting the HOX tradition of greatness!