Tri312 Indoor Triathlon Series & Triathlon Training Clinics

Indoor Triathlons, Clubs, Clinics, and Training Programs.

We’re excited to bring several programs, partners and sponsors together to create Chicago’s first ever unified triathlon community of clinics, training programs, and the Tri312 INDOOR TRIATHLON SERIES.

Join our race series of year-round INDOOR TRIATHLONS across multiple health clubs, and Tri312 TRIATHLON TRAINING clinics and programs across multiple triathlon training clubs – including Lakeshore Landsharks, BFF Bikes, Team to End AIDS (T2), 4 Star Endurance, TriDot, and more!


Tri312 Programs

Join our indoor races – or sign up for our triathlon club, training program, and triathlon clinic series for all ages and ability levels!


Join our triathlon community, triathlon training programs, and triathlon clinics – powered by Lakeshore Landsharks, 4 Star Endurance, Team to End AIDS (T2), and BFF Bikes!



Triathlon is not just a summer sport, compete year round with our indoor triathlon race series – or get involved in becoming a partner club, charity, coach, or sponsor!






ATHLETES – join our training programs or invite your friends and family to race and volunteer in our fun beginner-friendly indoor triathlon series… a great way to test your fitness and get ready for upcoming outdoor triathlon races! Volunteer at www.Tri312.com/volunteer

4 STAR CLUB – join our TRI312 community or 4 STAR CLUB and become a member of our growing triathlon community to enjoy $15 off per race, or save up to an additional $25 for a total of $40 off when you volunteer and race on the same day! Join our club at www.4starendurance.com/club and sign up to Volunteer at www.Tri312.com/volunteer

COACHES – are you a coach? Contact us to get involved in our training programs, clinics, or volunteer and set up discounts for your athletes! Become a series partner for an opportunity for you to showcase your coaching business to a wider audience!

CLUBS & TRAINING CENTERS – are you a health club or facility that wants to bring Tri312 to your club? Contact us and let’s bring Tri312 races or training programs to your location and community!

CHARITIES, PARTNERS & SPONSORS – Contact us to get involved in our indoor triathlon experiences at www.Tri312.com/sponsors


Don't miss our fun swag items for athletes and volunteers!


We wouldn't exist without amazing volunteers!  Join our volunteer crew at Tri312 and help our series continue to grow!


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