Millerton Lake Triathlon, 5k & 10k

Sun August 23, 2020 Directions


8:00AM PDT
Events: Sprint Triathlon Olympic Triathlon


8:00AM PDT
Events: Sprint Triathlon Relay Olympic Triathlon Relay
Under 18/70+ only $15


8:00AM PDT - 12:00PM PDT
Under 18/70+ only $15


8:00AM PDT - 12:00PM PDT

Sprint Aquabike

8:00AM PDT - 12:00PM PDT

Sprint Aquathon

8:00AM PDT - 12:00PM PDT

Sprint Duathlon

8:15AM PDT - 12:00PM PDT

Olympic Aquabike

8:00AM PDT - 12:00PM PDT

Our safety plan has been approved for triathlons in Fresno County. The Millerton Lake Triathlon has been rescheduled for August 23th, 2020 and moved to Shaver Lake. Please visit the new race site here:

Follow this link to the 2020 Crow's Nest at Shaver Lake

We have developed a plan which will increase social distancing for the safety of our participants which includes limiting to two participants per bike rack in transition, a time trial style swim start, a minimum of one pottie per 50 athletes, and increased social distancing before and after the event.

Millerton Lake Boat Ramp-Madera Side
Meadow Campground
Friant, CA 93626
Athlete Guide

Updated guide coming soon


What will you find at the "Crows Nest" Triathlon?

+ Finisher's Medal
+ Rosa Brothers Chocolate Milk
+ Pulled Pork Sandwich, Chips, Drink
+ Prizes and Giveaways
+ Free Race Photos
+ Live Band
+ Get an Event T-Shirt included in the price of the triathlon

The Millerton Lake Sprint Triathlon has long been known as a great "first lake swim" triathlon, and a warm up for the upcoming season. But don't let the bike and run distances fool you, there are a few steep hills on the ride, and the trail portion of run is a challenge.

More of a good thing... The Olympic Distance has a more challenging swim, two loops of the bike course, and two loops of the run course with a trail run heading out, a paved road coming back and beautiful Millerton Lake as the backdrop.


A USAT membership is required for the Triathlon, (but not the 5k/10k)  If you do not have one, you can purchase one during the registration process.

Total participation at this event is capped at 250.  Register before it is sold out.

There is a $10 vehicle entrance fee.  We recommend car pooling if possible.

Millerton Lake Triathlon Video


Triathlon- 400yd swim, 10.5mi bike, 3.1mi run
Aquabike- 400yd swim, 10.5mi bike 
Duathlon- 3.1mi run, 10.5mi bike, 3.1mi run 


Triathlon- 1600yd swim, 21mi bike, 6.2mi run 
Aquabike- 1600yd swim, 21mi bike 

Run/Walk Only

5K Run/Walk 
10K Run/Walk


6:30am Race day Registration until 7:30 
6:30am Transition Opens 
7:45am Race Meeting
8:00am Olympic Duathlon Begins 
8:10am Olympic Triathlon Begins 
8:50am Sprint Duathlon Begins 
8:50am 5k & 10 Run Begins 
9:00am Sprint Triathlon Begins 


Your safety is our highest concern at the race.  

  • 6+ Kayaks/Paddleboards/Lifeguards in the water.
  • EMT Team On Site
Packet Pickup

Thursday before race day @ 4:30-6:30
Fleet Feet Fresno
9447 N Fort Washington Rd #106
Fresno, CA 93730

Sunday (race day) @ 6:30am-7:30am
Millerton Lake Boat Ramp-Madera Side
Meadow Camp Ground
Friant, Ca 93626
Click for map 


Volunteers get a meal, t-shirt, and choice of

  • 100% off a 5k or 10k run hosted by Activitynut
  • 50% off of a multisport event hosted by Activitynut
  • $30 off of next year's season pass

Non-Profit 501(c)3

This event is hosted by the Activitynut Foundation, Inc.; a non-profit 501(c)3 who's mission is to connect athletes with local events, clubs, coaching and local stores. We maintain a race calendar listing local events at

Join Activitynut Club (free membership), and get 15% off of this and other events hosted by Activitynut.


Sunday Event Parking: Be prepared to have a parking pass or $10 cash at the event.

Volunteer Parking: Volunteers that do not have a parking pass,  we will pay for your parking on Sunday morning.  Carpool if you can, there is no free parking. We will have to pay for each volunteer vehicle that parks.

Race Contact Info

If you have any questions about this race, click the button below.

Race Website

Additional race information can be found at


Millerton Lake Boat Ramp-Madera Side
Meadow Campground
Friant, CA 93626

Race Participant Survey

Please complete the following survey to help us better understand your race experience.

Did you participate in the race?

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