Coaching Staff Summer Session 2019

Natalie Longoria - Head Coach

A former Sea Lion and Redwings swimmer, Natalie’s passion for St. Johns swimming is easy to see. As an assistant coach for the last two seasons, Natalie now steps into the role of managing our coaches and lesson plans as well as overseeing the progress of all our kids. We know she will do a great job! Natalie and her husband Mike are proud parents to Sea Lion, Preston Longoria.


Peter Sperry - Assistant Coach

Peter has been with the Sea Lions for over eight years and continues to be one of our swimmers favorite coaches to learn from.  A former Sea Lion and Redwing swimmer, Peter has recently taken a job as Kindergarten Teacher in Dewitt.  Peter still holds a few Sea Lions records that he hopes are broken in the near future.


Andy Murray - Assistant Coach

Andy has been the Head Coach for the Owosso Varsity Girls team for the past 3 years and the Owosso Middle School Team for the past 5. A former Sea Lion and Redwing swimmer, Andy went on to spend 15 years teaching swim lessons, life guarding and managing the St. Johns City Pool and Grand Rapid Aquatics Center. Andy’s experience will be invaluable to our club as he assists with the weekly training plans and workouts. When he’s not busy coaching, Andy enjoys completing Marathons (3), Half Ironman Triathlons (6) and Ironman Triathlons (3). Andy and his wife Ashley are proud parents to Sea Lion, Lizzy Murray.


Nick Bishop - Assistant Coach

Nick returns as another former Sea Lion and is a proud parent to Sea Lion Madelyn Sweckard. His favorite part of coaching is watching kids set new personal records.  When he's not coaching, Nick enjoys competing in Triathlons.


Dr. Tyler Dickinson - Strength and Conditioning

Dr. Dickenson is a St. Johns native and earned a degree in Human Biology while wrestling for Michigan State University. His Healthy Living Nutrition Course, Family Fitness Night, Couch to 5K, Strong Core - Healthy Spine classes have improved health & fitness in our community and we are excited for him to share his talents with the St. Johns Sea Lions.


David Pumfrey - Junior Coach

David is a former Sea Lion and current Ovid Elsie Varsity swimmer.  He is a current lifeguard and is our very first coach to enter the Junior Coaching Program.  He has successfully completed Level 1 of the USA Swimming program and is officially a USA Swimming Member Coach.  Click the link to learn more about our Junior Coaching Program.

Marcus Jones - Junior Coach

Marcus is a former Sea Lion, a current Redwing Varsity swimmer and a team Captain for 2019-2020.  He is lifeguard certified and has been instructing swim lessons for a year and a half.  His favorite stroke is backstroke and his favorite part of coaching is watching the young swimmers improve their technique.  As our newest coach, we are excited to add Marcus to our team!

Koy Grams - Junior Coach

Koy has been involved in the Sea Lion's program for 9 years.  He just completed his freshman season on the Redwings Varsity team.  His favorite events are the 100 Breastroke and the 500 Free.  Koy is lifeguard certified and loves watching the kids improve in their technique, skills and confidence.



Coach Natalie gives some final instructions.
Coach Natalie gives some final instructions.
Dr. Dickenson oversees the nights circuit training.
Coach Natalie and Coach Peter work on flip turns.
Coach Peter coaches a first time diver.
Coach Katelyn demonstrates kicking techniques.
Coach David congratulates Jack on a successful meet.
Coach David congratulates Jack on a successful meet.