Dynamo Program Links
Coaches & Directors

We are here to support your needs. If your questions are related to workouts, meets, events, goal setting, and other swimming related needs, please contact one of the coaches. For all questions related to administrative, such as dues, safety, or policy issues, please contact one of the board members.

Coaching Staff

Jason A Turcotte

Head Coach/CEO


Jason Turcotte joined the Dynamo organization September, 2006 as the club`s 8th head coach. Jason coaches the SR1 Group at Chamblee, as well as the development and direction of Dynamo Swim Club and its programs. He will oversee both swim facilities, Alpharetta & Chamblee and their respective programs. Coach Turcotte has previously coached at the Lake Erie Silver Dolphins, Stanford University, Assistant Coach, and most recently as the Head Coach of the Naperville Riptide Swim Team. He has experience coaching the Olympic elite athlete as well as developing age grouper swimmer. He has been touted as one of the `best young coaches in the country.

Beth Winkowski

Lead Coach-Cham/Associate Head Coach


Coach Beth began coaching at Dynamo in the fall of 2004. She is responsible for the Senior 2 swimmers as well as the development and direction of the Chamblee Staff.  Prior to Dynamo she was the Head Coach for 12 years at Portland Aquatic Club in Portland, Oregon where she began her professional coaching career. Beth has coached state, sectional, and zone champions at an individual and team level. She also assisted several swimmers in earning National Top 16 rankings, Junior and Senior National qualifying times. 

Coach Beth’s coaching strengths include: detailed and analytic stroke instruction with an eye towards body awareness, a creative and demanding training regime, and good communication with parents and athletes. She accomplishes all this while recognizing the athlete as a whole person who benefits from the permanent life lessons learned by children who participate in organized athletics.

Maria Thrash

Head Coach/Masters-Triathletes


Nancy Williams

AG3-GN, AG2-GD Masters & SR1 Alph


Nancy Williams joined the Dynamo coaching staff in the 2004-2005 season as the Senior III Coach at the Alpharetta Facility, and coaches Age Group 2 and  Senior 3, as well as morning masters at Alpharetta. Nancy, a native of Georgia, started swimming at a very young age through high school. Nancy attended Lenior-Rhyne College in Hickory, NC on a softball scholarship. Coach Williams studied physical education & athletic training. She received a graduate assistantship as an athletic trainer at the University of Mississippi while taking graduate studies in Exercise Science. She entered the coaching world in 1999 in Jackson, MS with the Sunkist Swim Team for 2 1/2 years and also coached for Swim Atlanta for 2 1/2 more years.  Coach Williams has performed duties as an assistant coach, head age group coach, masters coach, as well as start up programs & clinics. Nancy is the Alpharetta Masters coaches for the Monday, Wednesday & Friday Group at 8:30/9:00 am.

Amanda Tarpley

Coach/Dynamo Juniors



Coach Amanda has over 15 years experience as a swim coach and instructor. She joined the Dynamo Swim club coaching staff in 2007, and is the lead coach for the Jr. program at the Chamblee facility. In addition, she has coached in the Dekalb Summer Swim League for the past 13 consecutive years. Amanda’s passion is introducing kids to swimming and facilitating a love for the sport.

Amanda was born and raised in Lilburn, GA and began her swimming career in the Atlanta area.  She was a top-16 qualifier in 1996, and later swam in college for the Division I University of Kentucky Wildcats. It was there that she obtained her Bachelors degree in Nursing and Social Work as well as her Masters in Social Work. She is currently working part-time as a Registered Nurse for Emory University Hospital, specializing in Neuropsychiatry.

Amanda married Joel Tarpley in July 2005, and they currently reside in Lilburn with their daughter Kathryn, new baby Olivia and two dogs Maddie and Dooley.

C Brian Wrighton

Lead Coach Alpharetta/Asst Head Coach


Brian has been coaching all levels of competitive swimming for the past 20+ years.  Most recently Brian was the Head Coach and Program Director for the Birmingham Swim League in Birmingham, AL.  During those 7 years Brian developed many Junior National/National/Olympic Trial/World Championship Trial level athletes that swam to several National Top 10 rankings, while at the same time growing the team from 150 to over 200 swimmers. 

Prior to this, Brian was the Head Age Group and Masters Coach of the Birmingham Swim League for 9 years.  His experience coaching this level is noteworthy as well with several National Top 10 rankings (age group and masters), Southeastern record breaking athletes and one relay National Age Group record.  During his tenure at BSL, Brian was also highly involved with Southeastern Swimming serving as its Age Group Chair, Administrative Vice Chair, and Laws and Legislation Chair. 

Brian is from Louisiana originally and swam at the University of Alabama and graduated with degrees in Elementary Education and Early Childhood Education.  He is married to the former Suzanne Black who grew up in Winston-Salem, NC and swam at Southern Methodist University.  They have one 3 year old son, Brian Jr., and one 14 year old miniature Schnauzer, Hershey.

Nick Graves

AG1-Gold and SR3-Gold Alpharetta



Nick Graves joined Dynamo in the fall of 2011 at our Chamblee location. During his first season he worked with Dynamo Juniors, Senior 2, Senior 1, and was the lead coach for AG2 Green. Since spring 2012 he has coached in Alpharetta as the lead coach for AG1 Gold and as an assistant with Senior. 

Prior to joining Dynamo Nick spent two seasons coaching in Tallahassee, Florida with the Maclay Northside Dolphins. While at Maclay he coached all ages but primarily worked with the 14 and unders. During that time he helped to grow the team and lead them to their best season in over three years.

Prior to coaching Nick swam competitively for 16 years. In college Nick swam at Florida State where he focused mainly on distance freestyle events. While at Florida State Nick swam for former Dynamo coach Alex Braunfeld during his sophomore year. Under coach Braunfeld he achieved Honorable Mention All-American status in the 1650 freestyle and placed 14th in the 1500m freestyle at the 2008 U.S. Olympic Trials.  During Nick’s junior and senior year he swam for Gary Taylor, another former Dynamo coach.  Nick graduated from the Florida State University in the Spring of 2011 with a degree in History. 

Collin Burchins

AG1-Green, SR3-Gold Chamblee


Collin joined the Dynamo staff in 2012 and currently coaches Senior 3 Gold and AG1 Green and also serves as Dynamo's meet director.  He swam for Gardner-Webb University located in Boiling Springs, NC.  He was a 3 time All-Conference selection for the CCSA and a 4 year Academic All-American.  Collin captained the Men's Team for the 2012 season and led them to a 3rd place conference finish in 2012.  He graduated in May of 2012 with a Bachelors in Biology and minors in Chemistry and Health Science.

Collin is a Georgia native, growing up in Lilburn, GA.  He currently lives in Atlanta with his German Shepherd, Maverick.

Stephanie N Sarandos

Coach, AG2-Green, Home School SR1



Stephanie comes from Florida State University where graduated in 2012 with a degree in Exercise Science. While at Florida State she was an essential member of the Florida State Swim and Dive Team.  During her time on the team she competed at the highest level of competitive swimming including NCAA’s, Olympic Trials, and even competed internationally at Greek Nationals. She is currently the school record holder in the 200 backstroke, was named MVP three years in a row, and also received numerous other awards for her academic and athletic pursuits.

Born and raised in Wisconsin, she swam on Waukesha Express Swim Team where she led them to five State Championships.  Throughout her college and high school life she has dedicated 17 years of her life to competitive swimming but not without giving back to the swimming world.  She has taught swim lessons for Swim America for four years, volunteered coached with Club Seminole, and has also given private lessons to both children and adults.  She has an inner passion for health and fitness and an even deeper love for helping people.

Martha Wright

AG3-Green, Home School Chamblee


Martha Wright will be joining the Dynamo coaching staff this season as the Age Group 3 Green Coach at Chamblee. Martha has been an active member of DeKalb County community for 24 years, where she began her swimming career. She swam competitively through age group and senior level with Dynamo Swim Club and club at Winthrop University and Georgia State. She continues to compete competitively in triathlons, half, and full marathons and is a proponent of healthy lifestyles and living.

Martha began coaching in 2006 as Assistant Coach to the Ragin’ Rays team where she has been the Head Coach since 2012. She went on to become the Head Coach for the DeKalb County State Team where they placed third at the GRPA Championships. In 2013 Martha founded the Echo Ridge Masters Swim Team where she continues to introduce and train adults in competitive swimming. 

Martha has been working with kids her entire life, tutoring and mentoring individuals at all ages. She worked for the American Youth Literacy Foundation teaching phonics and training tutors. Her goal is to inspire individuals to achieve their greatest potential and to encourage them to learn and grow as athletes.

Sue M Jaescke



Sue is an accomplished swim coach with 9 years of experience.  Initially, while attending Georgia Southern University, her coaching career began as a developmental level coach for a team in Statesboro, GA.  From there she worked at all levels of competitive swimming coaching swimmers from state and zone champions to national qualifiers. 

Swimming has been a huge part of Sue’s life since she was a little girl; she began to compete on a small YMCA team in her hometown of Northampton, MA at age 3.  Her career continued through high school placing top three in the state Freshman-Junior year in breaststroke and I.M.  Sue did not compete her senior year due to a serious shoulder injury.  Sue recovered from her surgery and was able to compete on the collegiate level receiving a swimming scholarship. 

She competed for two years in college, in NH, while breaking multiple school records within the ECAC conference. Her specialties were 100 Breast and 200 I.M. unfortunately; complications with her previous shoulder injury ended her college career prematurely.

Sue has since been able to compete at Masters' Nationals placing top five in the nation in multiple events.  She is also USA Swimming Coach certified and ASCA Level 3 certified.  Sue enjoys the technical aspect of teaching strokes, turns and starts. She is eager to meet and work with all Dynamo swimmers. 

Michael P Kirkpatrick

Assistant Coach


Mandi Bell

Coach, Chamblee


For over 23 years, Coach  Mandi has been teaching and coaching swimmers at the USA, summer league, high school, and Masters levels.  She grew up in Nashville, Tennessee and swam competitively as a “top-16 swimmer” and Senior National Qualifier for Nashville Aquatic Club.  As a mother of four young children, she now limits her swimming to open-water competitions in such places as Key West, the Bahamas, and the more opaque lake waters of Altoona, Ackworth, Winder, and Peachtree City.

Sam R Wilson

Assistant Coach


A recent graduate of Gardner-Webb University, Sam interned with Dynamo during the summer of 2013 under Coach Beth Winkowski. He spent two months working with the AG1 gold and Senior 2 group. During his four years at Gardner-Webb University, Sam was a six time CCSA All-Conference team member specializing in distance freestyle events. He also served as a 2013-2014 team captain. 

Before coming to Dynamo, Sam was an assistant coach of the Twin Rivers YMCA in New Bern, North Carolina, his hometown.  The sport of swimming has taught him many things, but he believes the three most important things are discipline, patience, and having fun.  Swimming is a unique sport that requires not one but all of these things. Sam hopes to teach and inspire these qualities into the hearts of his swimmers, and is looking forward to a great future with the Dynamo program. 

Monica Dudziak

AG 3 Gold Alpharetta


Monica Dudziak is starting as the new swim coach for AG3 Gold at Alpharetta. She graduated from Georgia State University with Exercise Science, B.S.. She first interned with Dynamo at Alpharetta under Coach Nancy. Monica swam 10 years through age group and senior level with Swim Atlanta and Dynamo Swim Club. Due to knee injuries, Monica could not compete further in swimming. That did not stop her love and dedication to the sport. The discipline, companionship, and good times is what makes swimming great. Hopefully, she can spread that around.

Mike Cotter

Dynamo Pool Management, CEO


Edie Wunderlich

Office Manager


Chrys Randolph

Team Accounts


Chrys Randolph has always been passionate about aquatics and aquatic management beginning as a California summer league teammate of Olympian Matt Biondi.  She began coaching swimming at age 18 and was a 4 year Varsity swimmer at Willamette University in Oregon where she received All American honors, was a National Champion and was named the University’s Woman Athlete of the Year.
 Chrys has been involved with Dynamo for over 18 years, as the parent of three Dynamo athletes, the first Dynamo Swim Club sponsored Coordinator for DeKalb Swim League, a Dynamo Coach, and most recently as Director of Human Resources for Dynamo Pool Management, Inc.  Chrys' current responsibility is continuing her committment to excellence at Dynamo by assisting in Team account inquiries, information and billing.

Board of Directors

Matti Koski

Executive Board Member, President


Mona Murray

Executive Board Member, Vice President


Barbara Coats

Executive Board Member, Treasurer


Richard R Ford

Secretary, Executive Board Member


Peter Lane

Board Member


Steve Hedenquist

Board Member/National Meet Director


Gloria Davis

Executive Board Member, Vice-President


Doug A Kintz

Board Member


Craig Bray

Board Member


Jun Xiao

Board Member