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  • Home
  • Fox Lake Athlete Guide
    • General Information
    • Athlete Parking
    • Maps
    • Swag and Awards
    • FAQ
    • Spectator Guide
  • About
    • About RPBY Trudy
    • Volunteer
  • Events
    • Fox Lake Triathlon
    • C.L. Half Marathon
    • Santa Run '24
    • MCCRIDE
    • McHenry County Races
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RP By Trudy :)

Just wanted to say thank you for a well run race with some very possible vibes! Your announcer also did a great job with both pre race talk and getting awards moving!


Thom M.

2025 Events

Crystal Lake Aquathon /July 20, 2025

Lake Michigan OWS August 10, 2025

Lake Michigan OWS August 10, 2025

Three Oaks Recreation Area in Crystal Lake is the site of this race. 1 or 2 mile swim OR combine it with a run for the Sprint .5 mile swim and 3.1 mile run or Olympic 1 mile swim and 6.2 mile run.

Register

Lake Michigan OWS August 10, 2025

Lake Michigan OWS August 10, 2025

Lake Michigan OWS August 10, 2025

Join the research for the cure for ALS. This swim offers opportunities to swim and raise funds for vital research. Distances are: 750 meters, 1500 meters, 1.2 miles, 2.4 miles and 5K. Thank you for all he swimmers who supported this event. We'll continue to seek curing this ugly disease. 

2024 Results

Sunday, August 31, 2025

Lake Michigan OWS August 10, 2025

Project: Swim Development

Come join us for this local event through many areas of Crystal Lake. Flat and Fast!

DUO CHALLENGE - 2 races and 1 low price! Opens Nov 24-26 for the lowest price offered!

REgister

Project: Swim Development

Project: Swim Development

Project: Swim Development

3 in-person sessions monthly at Dundee Park District Rakow pool. 2024/2025 dates are filled.  Look for 2025 dates to come.

Sunday, December 7, 2025

Project: Swim Development

Sunday, December 7, 2025

Thank you for all the support. Over 400 runners and walkers on race day!

2024 Results

Sunday, May 24, 2026

Project: Swim Development

Sunday, December 7, 2025

Sunday, June 7, 2026

Crystal Lake Main Beach - OWS Clinics 2025

Sunday, June 21, 2026

Join us for the 9th Annual Fox Lake Tri. 1/2 mile lake swim, 12 mile bike, 3.1 mile run. USAT Sanctioned. Same Lakefront park but only better.  Shortened swim (750 yards), Addl' lifeguards, great swag, come and see for yourself. Relay and individuals welcomed.

Sunday, June 21, 2026

Crystal Lake Main Beach - OWS Clinics 2025

Sunday, June 21, 2026

Join Veterans, Friends and Family for this Patriotic celebration 5K, 10K, and 1 Mile fun run. 

See you in June 2026

Results

Crystal Lake Main Beach - OWS Clinics 2025

Crystal Lake Main Beach - OWS Clinics 2025

Crystal Lake Main Beach - OWS Clinics 2025

Get ready for your upcoming triathlon or swim race season with these clinics. Four dates at the Crystal Lake Main Beach. Expert instruction by Jennifer Harrison Triathlon Coaching and Gemma Hollis, Push, Glick, Kick swim instructor. 

DATES:  May 28, June 4,25, July 9. 

Register Here

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Crystal Lake Aquathon

    Winter triathlon workshop

      McHenry County Century Ride

        Fox Lake Triathlon

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