Saturday - July 17, 2021

Cassopolis, Michigan

Sprint Triathlon

Diamond Lake Triathlon will feature a Sprint Triathlon. The race starts with a 500 yard swim on beautiful Diamond Lake followed by a 12 mile bike and a 3.3 mile run.

Club Challenge

4 Clubs will compete this year to capture the traveling trophy and a year's worth of bragging rights!

Hosted By

Graciously hosted by Diamond Lake Marina, located on beautiful Diamond Lake in Cassopolis Michigan.


USA Triathlon Sanctioned Events

USA Triathlon is the National Governing Body for triathlon, as well as duathlon, aquathlon, aquabike, winter triathlon, off-road triathlon and paratriathlon in the United States.

More information about USA Triathlon is available on their website:


Challenged Athletes Foundation®

It is the mission of the Challenged Athletes Foundation (CAF) to provide opportunities and support to people with physical challenges, so they can pursue active lifestyles through physical fitness and competitive athletics. The Challenged Athletes Foundation believes that involvement in sports at any level increases self-esteem, encourages independence and enhances quality of life.

More information about the Challenged Athletes Foundation® is available on their website

Alex Stscherban

Proceeds will benefit Alex Stscherban, a local triathlete, who suffered a cardiac arrest after completing a triathlon. Money raised will be used to help with his medical bills during his recovery.

Upcoming Events


Ideal Beach Triathlon and Ideal Beach Kids Triathlon in Elkhart Indiana.


Diamond Lake Triathlon in Cassopolis Michigan.


Eagle Lake Triathlon and Eagle Lake Kids Triathlon in Edwardsburg Michigan.


Barron Lake Triathlon and Barron Lake Kids Triathlon in Niles Michigan.


Volunteers are a crucial element to the safety and success of a race. Without volunteers it would be impossible to provide a secure race for our athletes.

Beginners Clinic

There will be several seasoned triathletes on hand. Bring your equipment and wetsuit for the clinic and we will answer any and all questions.


A big thank you goes out to our sponsors, without them this race would not be possible. Sponsorship opportunities are still available!