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Tsunami Coaching Staff

2026 Tsunami Coaches

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David Sahm Swim Coach

Howdy, My name is David Sahm and this is my 2nd year coaching for the Tsunamis and 3rd year instructing lessons for the COCS. I was fortunate to find this opportunity after having a career in training and planning roles serving in the Marines, working at TAMU, TEEX, in the oil and gas industry and the City of College Station.

My swimming career began in my youth in age group competition, into high school and into college at Texas A&M University. I graduated in 1982 and was a team member of Coach Jay Holmes.

About ten years ago, I returned to swimming in the masters and senior games program. Mostly I swim for fitness with maybe a meet or two a year.

My wife, Janice and I are enjoying our 43rd year of marriage. We have three daughters, 2 sons-in-law, 2 grandsons and 1 granddaughter. We enjoy many activities together including gardening, birdwatching, camping, fly fishing, traveling and spoiling our grandchildren.

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Kate Bertelson Swim Coach

Originally from Lubbock, Coach Kate started competitively swimming in 2011 and would later finish swimming in 2018 at Lubbock High School. After high school, she started working for The Boys and Girls Club of Deep East Texas and found her passion for coaching and working with youth programs! Coach Kate served as the head summer league coach for the Lufkin Sharks in addition to coaching Ambush Swim Team from 2021-2024. While Kate finished grad school at Texas A&M University, she coached at Aggie Swim Club and eventually served as the Site Supervisor for Novice and Age Group Development. Her favorite part about coaching is watching swimmers reach their goals, make friends, and learn to love swimming! In her free time she can be found traveling, going on walks, and enjoying time with her friends and family. Kate Currently serves as the Administrative Coordinator for TAMU Choral Activities and is thankful to have the opportunity to coach this summer!

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Ty Lingo Swim Coach

This will be Coach Ty’s first year as a swim coach but it will be his 13th year to be a part of the Tsunami’s program. Ty has swam with the Tsunami’s since 2012 and has swam for the past 4 years on the A&M Consolidated High School swim team. His favorite events are the 50 and 100 free. When Ty isn’t swimming or coaching he enjoys hiking and hanging out with friends and family.

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