Coaching Staff
Mark Kohnhorst Executive Director/Head Coach/JRs Coach

Mark is the Lake Country Swim Team Executive Director and Head Coach, lead coach for Junior practice group.

Mark brings more than 30 years of experience to the program as a coach, swimmer and parent. Mark began coaching with the Hartford Swim Club and Hartford HS in 1980, coaching the Boy's and Girl's teams through to 1991. Mark's coaching career with LAKE began as the Hartford Program coach in 1987, being promoted to the Head Age Group coach in 1991. He assumed Head Coach and Executive Director responsibilities in 2002.

Raised, and still living, in Hartford Wisconsin, Mark is married to Darsi since Ground Hog's Day 1980.  He has three children, Whitney, Devin and Aiden. When not on the deck or in the office, he enjoys putzing around the house, reading, crossword puzzles and other word games. Mark loves to cook for the family as well, especially on the grill, which is used year-round.

You can reach mark via the phone or email.  You won't find him on twitter or facebook - sorry just too much to keep track of.

Thomas RadtkeHartford Head Coach

Head Hartford Coach

Email: [email protected]

Tom Radtke joined the Lake Country Swim Team staff in June 2018 and currently serves as the Head Coach for the Hartford site. Prior to this role, he contributed to the program as the Assistant Senior Coach and led both the Senior Sterling Silver and Senior Silver training groups.

Before joining Lake Country, Coach Radtke gained extensive experience at several programs, including the University of Maryland Aquatic Club (2014–2016)Life Time Mid-Atlantic Team (2013–2014), and as an Assistant Coach at Cal State University East Bay (2011–2013).

A competitive swimmer himself, Tom swam for Dinuba High School and continued his athletic and academic career at Whitworth University (2005–2009), where he earned a Bachelor's Degree in Kinesiology.

Tom is married to Beth Radtke and together they have four children.

Dave Joyce Senior Gold and Sterling Lead Coach

Coach Dave Joyce has over 30 years of coaching experience and returns to Wisconsin and LAKE as a senior coach after spending the last several years working as a high school teacher (and Little League coach) in Brevard County Florida.  Dave's last full-time coaching role was right here in Hartland, where he led the Phoenix Senior Squad from 2015-2018.  Prior to that, Dave had spent several years coaching with UW-Milwaukee as well as leading the fledgling YMCA at Pabst Farms program to relevance between 2005-2012.  Dave's swimmers accumulated countless state titles and record setting performances during his tenure and he guided multiple athletes to Olympic Trials appearances in 2004, 2008, 2012 and 2016.  Dave's three children, August (12), Denver (11) and Shoal (10) were all born in Oconomowoc and he is excited to bring them "home to Wisconsin" while finding his own way back to the pool deck where he helped guide so many young Phoenix athletes to grow and develop in pursuit of their goals.  

Conner Andrews Senior Silver and Bronze Lead Coach
Coach Conner Andrews has more than 17 years worth of experience as a swim coach. He started out assisting at Madison West YMCA during the summers he stayed in Madison to train and race as a Wisconsin Badger. Later, Conner moved onto a bigger role coaching multiple groups at Oregon Community Swim Club and then returned to Lake Country starting out as a Senior Assistant Coach in 2012. He has also gained experience as a Head Coach at Pewaukee High School and as an Assistant Coach at University of Wisconsin-Milwaukee. His specialties lie in technique analysis and mentorship. 
 
As a veteran swimmer, Conner has a long history with Lake Country Swim Team starting at age 11 after switching from Tosa Swordfish. He knows the Phoenix tradition of excellence well. His experience as a swimmer ranges from a multi-time club and high school individual state champion and finaling at Junior Nationals through high school to being heavily recruited by top-ranked Division 1 schools. He ended up accepting an athletic scholarship at UW-Madison where he continued to perform at a high level competing at the Big Ten Championships each year.
 
Conner still trains and competes here and there in the Masters division and serves on the Wisconsin Swimming Board of Directors as Open Water Swimming Chair. 
 
Outside of coaching, he enjoys open water swimming, trail running, travel, reading, cooking, and concerts.  
Aiden Kohnhorst AG Gold, AG Silver & Super 8 Coach

Aiden has been a Lake Country Swim Team member since he was 7 years old.  Born and raised in Hartford, Aiden attended Hartford High School where competed regularly inthe WIAA State Meet and established a school record in the 500 Free.  He has been coaching with the team since 2010.  Aiden has a Level One Certification with ASCA.  In addition to being the lead coach for Lake Country's Bronze, Silver and Super 8's group, you will see him helping out with the other age groups programs on the team.

Despite his youth, you won't find Aiden on the social media sites, but you can reach him via email or phone.

MacGyver Zepezauer Assistant Coach - Hartford Pool
 
Alan Halfen Age Group Bronze Coach

Alan started swimming competitively at the age of 10 and swam through high school. He was a two-year captain of the Sauk Prairie - Wisconsin Heights Swim Cooperative and part of the state team his senior year. Alan’s favorite stroke was (and still is) distance backstroke, and he was known at high school meets for swimming the 500 freestyle on his back.

He gave up swimming in college to attended a school without a team but has come back to swimming competitively through triathlons. Currently, he trains and competes in Ironmans. Ultimately, he hopes to race for himself for about five more years, and then turn his efforts to aiding disabled athletes who want to compete in endurance events through programs like My Team Triumph.

Alan has coached for club teams in the past, and most recently coached for the Ocon YMCA swim team. He brings his experience and passion for swimming and learning to Lake as the AG Bronze coach – you will also see him assisting with other squads. Joining him at Lake is his daughter Reagan who swims in the Super 8s. When not coaching, you’ll find Alan at his full time job as a Race Director for a local endurance sports company.

The best way to reach Alan is via email ([email protected]) or via text message (847.951.8990). 

Fallyn Duque Senior Assitant Coach