Lake San Antonio Triathlon

Home Page

Lake San Antonio is a perfect venue for testing your skills!

Come and enjoy the day, or weekend, with us.

Swim, Bike, Run, Camp!

Event Date:

May 5, 2024, 8:00 AM

Early Registration is opening soon!


Sprint Triathlon (1/4 mile swim, 7.5 mile bike, 3.1 mile run)

Olympic Course Triathlon (1 mile swim, 23 mile bike, 6.2 mile run) with Relay Option

Parent/Child Triathlon (100 yard swim, 3 mile bike, 1 mile run)

Duathlon (3.1 mile run, 23 mile bike, 6.2 mile run

AquaBike (1 mile swim, 23 mile bike)

NEW – Swim, Bike, Run Course Videos (see Course Maps Page)

College Student Discount

College Students receive a discounted rate. Please be prepared to show your vaild Student ID at time of Packet Pickup.


– Awards will be issued to the top 3 finishers in all age groups (5 year increments).

– Overall placement awards will be issued to the top 3 overall men and women.

– All participants will receive a commemorative Lake San Antonio Triathlon T-shirt!

– Relay Teams welcome for Olympic Course Triathlon only.

Arrival Time & Parking at Lake San Antonio

All participants must be at the Park no later than 7 AM to have sufficient time to setup their transition area and receive final instructions at the Mandatory Meeting (7:30 AM).

Transition Area

The Transition Area opens at 6 AM. Please have all your equipment in place before 7:30 AM.

USA Triathlon (USAT) Information

This is a USAT sanctioned event. All participants must show a valid USAT membership card and a photo ID at time of packet pickup. Non-USAT members will need to purchase the one-day USAT card for $15. Payment can be made during online registration, using the mail-in registration form, or at time of packet pickup.


USAT – Most Common Violated Rules

All bikes must have the bar ends plugged. No bike will be allowed into the transition area or on the course unless each bar end is securely plugged. Do not get disqualified for non-compliance.

Water Temperature & Wetsuits

The water temperature is usually 62-68 degrees for this time of year. Wetsuits are recommended but not required.

Food & Event Nutrition

There will be after-event nutrition available to participants and volunteers only. If you plan on staying for the day or the weekend, please bring food, water, and other supplies as you require. There will be no food vendors on site.

Directions to Lake San Antonio – Click on the map to Zoom In/Out, Click on “View Larger Map” to get directions