42nd Annual “SDIT”

San Diego International Triathlon

Sunday, June 22, 2025

International/Sprint/Duathlon/AquaBike/Relays

New for 2025! SD Tri Series 5K

Free Triathlon Training Clinics for Adults and KIDS! - Sunday March 30th - Ski Beach - Comes with a FREE Lunch - See the topics and RSVP HERE

Race Through History at the San Diego International Triathlon!

Join us on Sunday, June 22, 2025, for the San Diego International Triathlon (SDIT)—one of the longest-running triathlons in the world! This iconic event has been the stage for legendary performances, making history year after year. Whether you're a seasoned triathlete or a first-time racer, SDIT offers an unforgettable race-day experience through some of San Diego’s most breathtaking landmarks.

A Course Like No Other

Swim, bike, and run your way through a scenic, fast, and historic course that showcases the beauty of San Diego:
🏊 Swim in the calm waters of San Diego Bay
🚴 Bike past iconic landmarks including the Cabrillo National Monument, the historic Point Loma Lighthouse, and Fort Rosecrans National Cemetery
🏃 Run along the waterfront, passing the Star of India, the USS Midway Aircraft Carrier, and finishing in downtown San Diego

A Celebration at the Finish Line

Cross the finish line and celebrate with a live band, a lively expo, and a beer garden—the perfect way to cap off an incredible race experience.

USAT Sanctioned Event
👕 Premium Tech T-Shirt
🏅 Unique Finisher Medal
🥐☕ Continental Breakfast & Coffee Bar in Transition Area
🎶🍻 Live Band & Beer Garden
Chip Timing with Lap Splits
📊 On-Line Results
🏆 Points for the San Diego Triathlon Series

New for 2025 – Bring Your Family & Friends!

For the first time ever, we’re adding a 5K run! Now, your family and friends can join the action and be part of the SDIT experience. Encourage them to race alongside you or cheer you on as you take on one of the most historic triathlons in the world.

Want the VIP Treatment?

Skip the lines and race stress-free with the VIP Package!
Race packet waiting for you on race morning—no need to attend the pre-race expo.
Reserved transition area space within your wave.
Fast, easy check-in at the VIP table so you can focus on your race!

🔹 VIP Option Deadline: June 15th—Don’t miss out!

Don’t miss your chance to be part of this legendary event. Secure your spot today and race through history!

Triathlon= Swim+Bike+Run

Duathlon= Run+Bike+Run

AquaBike= Swim + Bike

Aquathlon= Swim + Run

San Diego International Triathlon Koz Events - San Diego's Best Triathlon.

2024 Design - 2025 Design coming soon!

Learn How to do a Triathlon, Duathlon or Aquabike on our SD Triathlon Series Website

We Have Free Triathlon Training Clinics - See our SD Tri Series Website for more information

San diego Historic sites you see on the triathlon

Fly over of the San Diego International Triathlon - International Length Race Course.

The race benefits Father Joe’s Villages, San Diego’s largest homeless services provider.  Each day Father Joe’s Villages serves 3,000 meals provides housing, rental assistance, healthcare, food, clothing, education, job training, mental health, addiction treatment and child development services to our neighbors in need.  For more information, please visit www.neighbor.org.

SD Tri Series logo

See ALL 6 San Diego Triathlon Series Events

Free Triathlon Training Clinics - Learn and Practice before the race

Want to volunteer?

Earn volunteer hours, preview the course, get involved in the tri community, or simply make someone’s day.

Or email us at volunteer@kozevents.com

We are currently working on ADA Compliance throughout our websites please email info@kozevents.com for any questions or suggestions.

if you are looking for a half marathon in San Diego please check out our Silver Strand Half Marathon.