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Coaches & Directors

Current Job Openings:

Age Group Swim Coach Positions

Coaching Staff

John Clark

Head Coach - Gold Coach

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Coach John Clark has over 16 years of coaching experience including summer league, high school, and club swimming. Beginning in 1991, he coached the Lochearn Monster Swim Team. He later went on to coach the CATY Barracudas Swim Team for 11 years. During his tenure, the team grew by 40%, growing from a total of three swims at Y Nationals in 1996 to over 40 swims and multiple finalists in 2004/2005.

Coach John also coached the Mount DeSales varsity swim team from 1999-2007. While there, he helped elevate the team from the bottom of the league to several top three finishes at IAAM championships, as well as two top four finishes at National Catholic Championships.

Coach John has a deep passion for competitive swimming and  is well versed in stroke technique, motivation, and race strategy.  He is committed to developing not only swimming ability, but the character and future of all the young men and women he coaches.

Coach John graduated from Towson University in 1999 with his degree in English.

Nina Groseclose

Asst Head Coach - Silver/JAGI Coach

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Coach Nina joined Mariner Swim Club in the fall of 2015. She is a former swimmer for MSC and Bolton Hill Swim and Tennis. She began competitively swimming at the age of 8, and continued summer swimming until she was 18. In high school and college Nina ran cross-country and track and field for her school teams. She continues to run competitively in local races. Outside of the pool, Nina is a high school chemistry and physics teacher at Lake Clifton High School in Baltimore City. 

Hollie Rawl

JAGII Coach

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A lifelong swimmer, Coach Hollie first dove into the pool competitively at age 4 and continued swimming throughout high school, earning multiple varsity letters, team and coaches’ awards, and earning the honor of team captain.  In college she switched to Women’s Collegiate Water Polo, where she earned All-Academic accolades and team captain. Throughout high school and college Hollie actively instructed swim lessons and coached competitive swim teams. A career move after college relocated her to Maryland (Baltimore).

Coach Hollie joined the Mariner Swim Club coaching staff in Summer 2016, diving at the chance to become re-involved in the world of swimming.  It’s been an incredibly fun and rewarding adventure thus far and she's excited to see what this season has in store. 

Coach Hollie's goals for JAG II include: Improvement in stroke, technique, and race performance; 100% effort at every practice; personal best times for every swimmer; developing healthy habits; having fun while working hard.

Sarah Lloyd

Bronze Coach

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Coach Sarah joined Mariner Swim Club in the summer of 2018. A native of Hightstown, NJ Sarah grew up swimming for Peddie Aquatics Association and then Peddie's high school team, as well attending Sectionals meets across the country during her high school years. A 2017 graduate of Division III powerhouse Kenyon College, Sarah swam the 400 IM, 500 free, and the 1650 free, finishing in the top 20 for each event at the 2015 NCAA DIII Championship meet in Shenandoah, TX. She is a 2-time NCAA All-American and a 4-time NCAA Academic All American, as well as Kenyon Ladies' Swimming team captain for her senior year. Currently in her second year of the UPenn Fellowship, Sarah teaches 9th grade history at Gilman, coaches Gilman Water Polo and Swimming, and is working on a Masters' in Education. 

Laura Groseclose

Minis Coach

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Coach Laura is happy to be joining the team of coaches for the Mariners. Being a former swimmer and a parent of swimmers from Mariners, it is great to be experiencing another side. Her love of swimming has been life long. Coach Laura believes it is the best sport for overall conditioning of one's body that can be picked up throughout one's life. Her competitive swimming began at Bolton Hill Swim and Tennis as a young child specializing in breaststroke, "the best-stroke". Though her college did not have a swim team she continued to swim and integrate it in her training for marathons as well as triathlons.

Outside of Mariners, Laura teaches at the Odyssey School where she has also coached the cross country team as well as assisting with the squash team. In her free time she enjoys exercising, reading, and spending time with her three most favorite people!

Ashlyn DeRoche

Coach

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Coach Ashlyn started swimming at the age of 9. She was part of a summer league at Thomson Country Club, and swam for Burbank YMCA Bluefins for seven years. She swam all four years during high school at Austin Preparatory School in Reading, MA where she qualified for sectional and states all four years. Ashyln was a three time CCL All Star and team MVP her senior year. Ashlyn swam all four years of college at Regis College in Weston, MA where she was a member of two relay teams that broke 25 year records. While at Regis College, she was captain of the women's team, qualified for ECAC twice, GNCA all conference team twice, NEISDA all conference team all four years, and NEISDA female swimmer of the week during her senior year. Ashyln has experience coaching and teaching swim lessons, was at one point head of swim lessons where she had a summer lifeguarding job.

Luke Watling

Coach

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Coach Luke is currently an undergraduate student at Johns Hopkins University pursuing a major in Psychology with aspirations of being a clinical/mental health therapist. Luke grew up in Northern Virginia where he swam for a summer team starting at age seven. He began swimming competitively for a year-round team at the age of thirteen through his senior year of high school. Luke's favorite events are breaststroke, distance freestyle, and IM. He served as a captain for his high school swim team. Luke has been coaching for summer teams since his freshman year of high school. He's been an assistant coach for the Four Seasons Swim Team in Herndon, Virginia for three years. Luke is very excited to get more involved in the world of swimming and is extremely thrilled to join the Mariner Swim Club coaching staff!

Genny Fitzgerald

Coach

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Coach Genny is a lifelong swimmer, coaching off and on since 2003. She started out assistant coaching the Ocean Pines Hammerheads in the summer of 2003. From there she went on to become part of the coaching staff at the Mid-Delmarva YMCA in Salisbury while she attended college at Salisbury University. She left coaching to start her career as a teacher for Baltimore city public schools. She then went on to get her Masters in Reading from Towson University and graduated in 2013. She now works as a Reading Specialist at Campfield Early Learning Center, a Baltimore County Public School. She has been the head coach of The Lochearn Monsters swim team in Randallstown for 5 summers, in addition to teaching. Her son, Jonah (age 7), is also a swimmer for the Mariners. Swimming is a passion she was happy to pass down to her son! 

Sarah Locke

Swim School Director

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Sarah-Margaret joined MSC in the Fall of 2018 as our Swim School Director!  She hails from Marietta, Georgia, and is currently enrolled as an Undergraduate at Towson University.  Sarah-Margaret is currently a member of the Women's Swimming and Diving Team at Towson University.

Board of Directors

Kirsten Lavin

President

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Michael Saulo

Vice President

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Gene P. Flynn

Treasurer

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Dwight Bergles

Secretary

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Scott Breza

Member at Large

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Aaron Milstone

Member at Large

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BG Purcell

Member at Large

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Laura Barrientos

Member at Large

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Kristin Zissel

Member at Large

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