Coaching Staff

Darrick Thomas

Email:  [email protected]
Head Coach
Lead Coach:  Senior

Darrick comes to Westfield from Carmel Swim Club and Carmel High School, where he served as the Head Age Group Coach for the club and an assistant with the High School.  Under his leadership his swimmers have broken over 25 club and over 10 Indiana Swimming Records.  He has produced multiple top 10 ranked swims and multiple number 1 ranked swims nationally.

Darrick previously coached at Race Aquatics in Bowling Green, Kentucky, where he served as Head Coach from 2012-2014. Prior to Race Aquatics, he was as an assistant coach at the storied Nashville Aquatic Club from 2010-2012.  Coach Thomas is not new to Indiana, having been the Head Coach for Zionsville Swim Club from 2005-2010.  In addition, Darrick has coached at the USA Swimming Gold Medal Club Lakeside Seahawks, and has collegiate coaching experience with Western Kentucky University.

Darrick brings a wealth of knowledge in all aspects of the sport. As both a lead and an assistant coach, he has had remarkable success at all of his previous coaching positions.  Over his career, he has led swimmers to the United States Olympic Trials, as well as developed individual Age Group Champions in Kentucky and Indiana. Regardless of age or ability, Darrick has demonstrated the capability to improve athletes both in and out of the pool.

Darrick currently lives in Carmel with his wife Jen, and their children Kiarra, Garreth, and Alden.


Garrett Surface

Email:  [email protected]
Head Age Group Coach
Lead Coach:  Age Group Elite, Masters

Garrett comes to Westfield by way of Arena, Franklin Regional Swim Team and Avon Community Swim Team. He started his coaching career as a developmental, and divisional level coach at ACST. There he helped develop multiple swimmers into divisional and state level swimmers as well as introducing newer swimmers to the world of competitive swimming.


After ACST Garrett joined FRST as head age group coach. While with FRST he coached multiple divisional, state, and zone champions and helped guide FRST to 3 straight top 5 finishes at Indiana age group state. He also helped coach the Indiana zone and mid-states teams for back to back years and was nominated for age group coach of the year. 


Garrett took a brief hiatas from swimming to experience the business side of swimming by working for Arena USA, however his drive and passion for coaching would never go away and thus he is making his return to coaching with Westfield Aquatics. He looks forward to helping build a club that will compete at the highest levels in our state for years to come.


Dan King

Email: [email protected]
Lead Coach:  Senior and Age Group Advanced

Coach Dan grew up swimming in Fishers, Indiana at Southeastern Swim Club at the age of 5. He went on to swim at IUPUI and studied exercise science and pre-physical therapy. After graduating from IUPUI he worked at a physical therapy clinic for 3 years, and went into sales after that. 

Coach Dan has an extensive background coaching summer leagues around the area: Grey Eagle, The Bridgewater Club, Meridian Hills Country Club, and Hawthorns Country Club. He started his USA Swimming coaching career in college with Southeastern Swim club for two years, before he took a short break to finish school and start his career. He then got back into coaching at Washington Township Swim Club and North Central High School where he coached all levels of athletes including the high school team. After 4 years he returned to his alma mater and coached 11-14 year old and Senior Assistant and the head coach of the Masters team. He is starting his 11th year coaching here at Westfield Aquatics where he runs Age Group 1 and lead coach for Senior 2. 

In his spare time he loves playing Rugby (14 years), and soccer. He has 2 Golden Retrievers named Ella (2) and Liberty (1). He looks forwarding to continue the development of athletes; helping them become the best versions of themselves both in the pool and in life.


Marissa Sindelar

Age Group 1 Lead Coach

Coach Marissa Sindelar grew up in Columbus, Indiana and began swimming competitively at the age of 7. Her Mom was a swim coach for their local swim team and Marissa would help her. She continued coaching through high school and would come home during the summers from college to teach swim lessons and coach. Marissa attended Ball State University where she obtained a BS in Exercise Science and Wellness and an AS in Dietetics.  

After swimming at BSU, Marissa continued competing for several years including in triathlons. Marissa coached the Noblesville Swim Team for one year before moving to Westfield in 2004 and has coached at The Bridgewater Club for over seventeen years. Marissa has been married for 25 years to her husband Grant, who was also a competitive swimmer through college. They have three children: Harrison (21), Mitchell (15), and Caroline (11).  Along with spending time with her family, Marissa loves to travel and be active including running with her dog, Derby and playing tennis.


Danielle Birk

Age Group 1 Lead Coach


Michael Marsch

Developmental Lead Coach


Keely Simonson

Senior /Age Group Assistant Coach

Growing up in Indianapolis, Keely got her start swimming with Riviera Swim Club where she began her competitive career at the age of six. She continued club swimming through middle school with Zionsville Swim Club and competed as a part of the Zionsville High School team for three years. As senior year approached, her college aspirations came into focus and she transitioned over to Carmel Swim Club to compete as a club swimmer for her last year of high school. Keely was recruited to swim for the United States Naval Academy as a breaststroker and traveled with the varsity team through her freshman year. A femur fracture ended her collegiate swimming career, but true to her “water baby” nature, she couldn’t be kept away from the water too long. She volunteered as an intramural swim coach, private swim coach, and remedial swim coach for students who required assistance to pass mandatory swim tests. During her time as an officer in the U.S. Navy, Keely coached local military leagues, provided private lessons, and generally enjoyed the coastal swimming environment. Keely’s leadership background has given her an appreciation for the value of team-building both in and out of the pool and she places a high premium on the foundations of swimming. Keely’s vision for developing high-caliber, quality athletes relies on respect, accountability, and trust.


Emma Simonson

Senior Assistant Coach


Jordan Van Winkle

Senior Assistant Coach