For general coaching questions please email Ron Haas, General Manager 

at [email protected] 

Sean Malley, Head Coach
Sean Malley has grown up in the OMPA first swimming for Campolindo Cabana Club from the age of 6, started coaching at the age of 13 and eventually became the Head Coach. After competing at Campolindo High School Sean attended the University of Oregon and realized he wanted to get back into swimming so he attended Santa Rosa JC. At Santa Rosa he became an All-American School Record Holder and Team Captain of the first men’s State Champions in school history. After SRJC Sean competed at University of California San Diego where he competed at the Division II National Championships and was a previous record holder at UCSD. After UCSD Sean took an Assistant Head Coach Role at Meadow where he spent the past 6 years and is excited to ride the waves as Head Coach.

Cathy Durden, Assistant Head Coach
Cathy returned to coaching in 2018 after taking 10 years off to raise her two children, Jack and Mia, both of whom swim for MCC. She spent 2017-2019 at Scottsdale swim team in Walnut Creek, helping guide the team to a 5th place team finish at the county meet. She has coached many different levels including learn-to-swim, summer league and D1 collegiate swimming. Cathy grew up in Ohio and was recruited to swim at Auburn University where she was a 3 time All-American. After her collegiate career she joined the coaching staff at Auburn from 2003-2005 during which the Auburn men won three NCAA team titles and the women won two.  Cathy enjoys working with each swimmer to unlock their personal potential in the sport and is very excited to be coaching at MCC this summer! Look for Cathy's husband, Dave, on tv this summer- he is the head men's swimming coach at Cal and the Head Olympic Coach for TEAM USA in Tokyo! Let's Go WAVES!
Sarah Cameto, Assistant Coach

Sarah Cameto is a lifelong endurance athlete who comes to MCC with a lot of excitement to share her passion with the MCC Multisport Team.  She was a competitive swimmer and an NCAA qualifier for 4 years at UC San Diego where she graduated with a degree in Economics.  She discovered triathlon after having her second child in 2012, and after two successful years as an amateur she started racing professionally until 2018.  Sarah has trained under Matt Dixon of Purple Patch Fitness in San Francisco since the beginning of her career, one of the most successful coaches in the sport.  She currently lives in Walnut Creek with her husband and two children, who swim for MCC.

Athletic Highlights

  • 3rd Female Ironman 70.3 Costa Rica 2018
  • 4th Female Ironman 70.3 Cartagena 2017
  • 4th Female Ironman 70.3 Xiamen 2017
  • 2nd Female Ironman 70.3 New Orleans 2016
  • 4th Female Ironman 70.3 Austin 2014
  • Kona World Championships 2019


Dalen Schnayer, Assistant Coach
Dalen grew up in lamorinda swimming in the OMPA league since he was 8 months old. He was at Moraga Ranch for 8 years and at Meadow for 7. Then he went to swim at Orinda Aquatics for two years, swimming at various travel meets such as Far Westerns and Speedo Sectionals. Tendonitis made him take a step back from swimming for awhile. He has been at MCC for two years now, coaching kids of all ages, 3 to 18. He will be attending Boise State in the fall, but until then he will be coaching and swimming for MCC. Go WAVES! 
Lleyton Allen, Assistant Coach

Lleyton grew up in Moraga and has been with MCC since 2005. His last swim meet was on July 20th, 2018, when he decided to finish his swim career and become a coach. He has coached kids ranging in age from 4-18. As well as swimming, Lleyton has been acting and singing all around the Bay Area since 5-years-old. He has performed the National Anthem for over 200 sporting events hosted by OMPA, Campolindo High School, University Of California Berkeley, and Saint Mary's College. Lleyton will be posting updates regularly on our Instagram page and will be utilizing junior coach Kate Dendinger as a caption consultant. He is excited to be a part of the 2021 coaching staff and is pumped to work with the kids of MCC. GO WAVES!


Lucy Marken, Assistant Coach/Microwave coordinator

Lucy Marken has been swimming at MCC since she was 6 years old, previously swam at MVP since she was 4. She swam for Miramonte high school for 3 of her 4 years there. She has been coaching at MCC for 5 years and will be swimming as a wave for the last time this summer before attending University of Oregon in the fall with a major in Child Development. Lucy will be coaching 6u’s & 7/8’s, leading dryland this summer with Charlie, and leading the Microwaves program this summer with Jenna. As much as she LOVES SWIMMING... in her free time she hangs out with her friends, goes to the beach, golfs with her dad, and attempts to play tennis with her momma. She is very excited to be back on the MCC pool deck and embrace the waves’ energy. She will be giving private lessons all summer long. RA RA WAVES!!!!!!


AMAZING Junior Coaches for 2021: Chase Bliss, Charlie Burke, Shayne Clancy, Lindsay Davis, Kate Dendinger, Anna Dendinger, Katie Duff, Alex Goett, Caroline Griffith, Meagan Kennedy, Hazel Krozek, Maddie Krozek, Ava Martinez, Paige Meyers, Sofia Reed-Gomez, Kate Rochios, Regan Stambaugh, Megan Stephens, Jack Thompson, Olivia Thompson, Amber Van Meines