Millerton Lake Crows Nest Triathlon, 5k & 10k
About this race
What will you find at the "Crows Nest" Triathlon?
+ Finisher's Medal
+ Prizes and Giveaways
+ Free Race Photos
+ 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.
Note:
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. Per USAT rules, multisport participants must present ID and USAT membership card at packet pickup.
Total participation at this event is capped at 200. Register before it is sold out.
There is a $10 vehicle entrance fee.
Pick your distance
Triathlon
Super Sprint Triathlon
Super Sprint Tri - 400 yd swim | 5.4 mi bike | 2.2 mi run Swim: Beginning in the water at Millerton, athletes will utilize Millerton Lake Boat Launch. Participants swim around buoys for 400 yards, exit the water at the boat ramp and proceed to the Transition Area. Bike: Beginning at the Transition Area, athletes will make their way north towards the Millerton toll booth, then return to transition. Run: The run is entirely on asphalt, running 1.1 miles to the aid station, turning around and returning to transition.
Sprint Triathlon
Sprint Tri - 800 yd swim | 10.5 mile bike | 3.1 mile run Swim: Beginning in the water at Millerton, athletes will utilize Millerton Lake Boat Launch. Participants swim around buoys for 400 yards, exit the water at the boat ramp and proceed to the Transition Area. Bike: Beginning at the Transition Area, athletes will make their way north towards the Millerton park entrance and proceed to the turn around at the end of the road. The bike is out and back with rolling hills. Run: Run is a mixture of single track trail and asphalt. Beginning at the Transition Area, athletes head north from the parking lot along the street for approximately 1 mile where they will veer right on to a single track trail towards Millerton park entrance. Athletes will turn left to exit the tail and head back to transition on the road.
Olympic Triathlon
Olympic Tri - 1600 yd swim | 21 mile bike | 6.2 mile run Swim: Beginning in the water at Millerton, athletes will utilize Millerton Lake Boat Launch. Participants swim around buoys for 1600 yards, exit the water at the boat ramp and proceed to the Transition Area. Bike: Beginning at the Transition Area, athletes will make their way north towards the Millerton park entrance and proceed to the turn around at the end of the road. The bike is out and back with rolling hills. Olympic athletes will ride do two loops on the bike course. Run: Run is a mixture of single track trail and asphalt. Beginning at the Transition Area, athletes head north from the parking lot along the street for approximately 1 mile where they will veer right on to a single track trail towards Millerton park entrance. Athletes will turn left to exit the tail and head back to transition on the road. Two loops of the course.
Sprint Triathlon Relay
Olympic Triathlon Relay
Duathlon
Sprint Duathlon Relay
Sprint Duathlon
Running
5k
Run is a mixture of single track trail and asphalt. Beginning at the Transition Area, athletes head north from the parking lot along the street for approximately 1 mile where they will veer right on to a single track trail towards Millerton park entrance. Athletes will turn left to exit the tail and head back to transition on the road.
10k
Run is a mixture of single track trail and asphalt. Beginning at the Transition Area, athletes head north from the parking lot along the street for approximately 1 mile where they will veer right on to a single track trail towards Millerton park entrance. Athletes will turn left to exit the tail and head back to transition on the road. Two loops of the course.
Virtual 5k
Run 5k miles anywhere to complete you virtual run!
Virtual Triathlon
Sprint Virtual Tri - swim 800 yd , bike 10.5 mile, and run 3.1 miles anywhere to complete your virtual event!
Sponsorship- Bronze
Sponsorship- Silver
Sponsorship- Gold
Sponsorship- Platinum
Aquabike
Sprint Aquabike
Olympic Aquabike
Swimrun
Sprint Aquathon
Olympic Aquathon
Typical race-day weather
Based on 4 years of Open-Meteo archive data for this event's race dates in Friant, plus the 3 days either side.
The sun rises at 6:20 AM and sets at 7:36 PM local time (PDT) in Friant on April 18, 2027 — 13h 15m of daylight.
Course
No course map published yet.
The organizer hasn't released a route for this event, and we don't publish guesses. If you're the organizer, send us a GPX file and we'll draw the profile.
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Other races near Friant
Different organizers, within 40 miles, in the next three months
The Wascally Wabbit Trail Race
San Joaquin River Trail 10k/25k/50k
CLOVIS Turkey Day Run
Two Cities Marathon
🏃 Plan Your Next Race in Friant
Find upcoming events by distance:
- Friant 5K Races 2 races
- 10K Run Events in Friant 3 races
- Friant Running Calendar 2026 5 races
Where this page comes from. Race details were last updated on . We re-check listings regularly and again in the week before race day.
- Entries, prices, waves and inclusions — the event's official registration page
- Temperature and humidity — Copernicus ERA5 reanalysis via Open-Meteo (CC BY 4.0)
- Elevation and terrain relief — Copernicus DEM GLO-90, ESA (CC BY 4.0)
- Comparisons and counts — Race Discovery calendar, 5 Friant events
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