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One race. 9 ways to do it.
The Carlyle Lake Triathlon is Sunday, September 20, 2026 in Carlyle, Illinois.
A rolling beach start. A flat, fast bike over the Illinois plains. A finish coming over the spillway of the largest man-made lake in the state. Sprint, Olympic, aquabike, duathlon, relay. A tri for everyone.
Register at mseracing.com/carlyle-lake-triathlon.
🏁 Race boldly, finish strong.
07/15/2026
🚨 SOLD OUT! 🚨
The Ballwin Triathlon is officially SOLD OUT! 🎉
Thank you to everyone who registered—we can't wait to see you on race day for an incredible event. Your support continues to make this race one of our favorites year after year!
If you missed out this time, don't worry! There are still opportunities to race with us this season:
🏊 Lake Springfield Triathlon
🏊 370 Lakeside Triathlon
🏊 Carlyle Lake Triathlon
We look forward to seeing you at the starting line soon!
07/14/2026
The last scheduled Innsbrook Open Water Swim Series session is Wednesday, July 22, 5:30 to 7:00 PM at Lionshead Beach on Lake Aspen.
Coach Sally leads a beginner-friendly clinic on shore. Lifeguards on the water. Angel swimmers if it is your first time. Drop in, swim your pace, stay as long as you like.
Register at mseracing.com/innsbrookopenwaterswimseries.
🏁 Race boldly, finish strong.
Triathlon has a fourth sport nobody trains for: the transition.
T1 is swim to bike, T2 is bike to run, and a calm transition saves more time than weeks of training.
Lay your gear out in the order you will use it. Helmet on before you touch the bike, every time.
Practice it once at home and race day stops feeling chaotic.
Save this and follow for more.
Race boldly, finish strong.
07/05/2026
People ask why we run twenty-plus events a year.
Here is the honest answer. We are not in the business of races. We are in the business of the moment someone realizes they are capable of more than they thought.
First-timers crying at the finish.
Friendships formed in a swim wave.
That is the whole point.
That is why the MSE crew shows up.
Tag someone you would race beside.
🏁 Race boldly, finish strong. https://www.mseracing.com/
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