Coaches & Directors
Coaching Staff

John S Collis III, Ph.D. CSCS

Hudson - Head Site Coach & CSI Director


John is a former All-American, Indiana University distance freestyler, US Olympic Trials qualifier and member of the 1984 Greek Olympic Swimming Team.  A former NCAA Division I, USA and High school Head Swim Coach, John has coached numerous Age-Group, USA, Olympic Trial Qualifiers and NCAA National Champions.  Collis currently serves as the Sprint & Strength Swim Coach for Brecksville-Broadview Heights High School, in which he designs and instructs both the Swimming and Dryland curriculum for the team. Within a five year span, the Brecksville Swim Team has gone from being unranked in the State to placing second in the State, with their Sprint relay placing First in the Nation.

As a competitive swimmer, John had the unique opportunity to compete for and train under three coaches who have all been enshrined in Competitive Swimming's highest honor, Swimming's International Hall of Fame. These three coaches include Jerry Holtrey, Lake Erie Silver Dolphins, John Trembley, High school National Champions Mercersburg Academy and the legendary "Doc Counsilman, seven time NCAA Division I National Champions, Indiana University.

John's All-American swimming accomplishments included being the top 500yd freestyler for High school National Champions Mercersburg Academy in 1981, a 4 year varsity distance swimmer for Indiana University, a 1984 United States Olympic Qualifier (200M and 400 M freestyle) and a member of the 1984 Greek Olympic Team (200 M freestyle, 400 M freestyle, 400 M freestyle relay, and 800 M freestyle relay). 

John has over 20 years of competitive swim coaching experience, coaching at the Division I NCAA, USA Club and High school levels. This coaching experience has resulted  in producing 14 High school State Champions, 11 age group National Champions and 7 NCAA National Champions, including 2010 NCAA sprint free-styling record holder, Zack Turk.

John is the founder and executive director of Cleveland Swim Institute and Cleveland Sports Institute, a multidisciplinary health, fitness sports enhancement and sports medical facility located in Broadview Heights, Ohio.   Since beginning his professional coaching career, John has remained steadfastly committed to providing all of his athletes with the same positive life lessons that he learned from his three coaching mentors. Most importantly, his commitment to passing on values like goal-setting, determination, and teamwork which is most evident through his selection of CSI Athlete's staff, whose team members exemplify these same standards of high-quality coaching and mentorship.

John lives in Solon with his wife Katey, two daughters Kacey and Laina Jane, and their three dogs, Pepper, Coal and Bailey.

Eric D Dennis

Broadview Hts - Head Site Coach


Tyler Anthony Thompson

Broadview Hts - Senior & Age Group Coach


Tyler is our Age Group Coach for the Broadview Heights site, and has been an athlete most of his life. He was coached under John Collis and Mark and Mary Ann Krusinski as a Brecksville Bee. During his high school swim career, he competed at the State and National level, and broke two school records in only being a swimmer for three short years. During his college career at BW, he broke 3 school records, holds a conference record, was a Division 3 NCAA qualifier for 3 consecutive seasons, and was ranked 2nd in the nation in the 100 Yard Breaststroke. Prior to coaching at CSI, he has worked with USA swim teams in Northeast Ohio, ran summer rec swim teams, and is certified to teach middle school math and science. Currently, as a CSI Coach, Tyler runs the Age Group program at the Broadview site, coaches Strength and Conditioning, and works with the high school swim teams that train at CSI. He has worked with hundreds of athletes in the past few years, and takes pride in coaching and helping others reach their goals. Tyler is proud to be a part of the CSI family, and is excited to continue building successful athletes and growing the program!

Jeanne D DeBonis

Hudson - Age Group Coach


Jeanne DeBonis:  Coach Jeanne was captain of her high school track team, NCAA Division III All- American college swimmer, 2000 Olympic Trials Marathon qualifier and four-time Ironman World Championship qualifier in Kona, HI.  She became an age-group Half-Ironman World Champion and continues to hold three Ironman age-group course records.  In 2011, she was named USA Triathlon’s Master Triathlete of the Year, Honorable Mention.  Jeanne currently takes on open-water marathon swimming challenges, including the 12.5mile swim around Key West (this past weekend).  Jeanne is a current lifeguard at the Brecksville Community Center and Coach of the CSI Primary and Junior groups.   She can’t help but bring out the best in her athletes! 

Mark Krusinki

Broadview Hts - Assistant Senior Coach


Mary Ann Krusinski

Broadview Hts - Developmental Coach


Kara L Dennis

Fairview Park - Head Site Coach


Matt S Laughlin

Fairview Park - Senior & Age Group Coach