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Millerton Lake Crows Nest Triathlon, 5k & 10k

Triathlon · 14 mi · 28 mi · Duathlon · 5K · 10K

Apr 19, 2026 · Friant, California, US

Listed Jan 29, 2018

CompetitiveCalifornia5KFunScenicPush Potential

Run Vibes summary

AI-assisted

At a glance (AI-assisted text)

Tackle the Millerton Lake Crows Nest Triathlon, 5k, or 10k, featuring challenging hills and trails amidst beautiful lake views. Perfect for a season warm-up or a serious test.

The vibe (AI-assisted text)

This event offers a welcoming yet challenging atmosphere, often serving as a great 'first lake swim' triathlon for newcomers while still providing a solid warm-up for seasoned athletes. You'll find a mix of participants, from those testing the waters in multisport to experienced triathletes pushing their limits. The overall energy is one of supportive competition, with a focus on personal achievement and enjoying the beautiful surroundings.

Best for (AI-assisted text)

This event is ideal for triathletes looking for a challenging early-season race or those ready to try their first lake swim triathlon. Runners seeking a scenic 5k or 10k with some varied terrain will also find it rewarding. It's a great fit for anyone who appreciates a beautiful setting combined with a physical test.

Race day (AI-assisted text)

Expect a well-organized race day, though remember to bring your ID and USAT membership card for triathlon packet pickup. The event is capped at 200 participants, so it won't feel overwhelmingly crowded, allowing for a more focused experience. Be prepared for a $10 vehicle entrance fee upon arrival. The courses promise a mix of terrain, including steep bike hills and challenging trail sections on the run, all set against the stunning backdrop of Millerton Lake.

Personality (AI-assisted text)

The Millerton Lake Crows Nest event has a friendly yet determined personality, encouraging both personal bests and enjoyment of the journey. It's supportive of those new to multisport, while also providing enough challenge to satisfy more experienced competitors. The atmosphere is one of shared effort and appreciation for the natural beauty of the course.

Weather snapshot (AI-assisted text)

Taking place in April in Friant, CA, you can generally expect mild to warm temperatures, likely with plenty of sunshine. While spring weather can be unpredictable, it's typically a pleasant time of year for outdoor activities in this region, making for comfortable race conditions.

Terrain & course feel (AI-assisted text)

The terrain for the triathlon is varied and challenging. The bike course features a few steep hills, while the run includes a demanding trail portion heading out and a paved road returning. The swim takes place in Millerton Lake, offering a classic open-water experience.

Signals we noticed (from listing text, AI-assisted)

  • Finisher's Medal mentioned
  • Prizes and Giveaways mentioned
  • Free Race Photos mentioned
  • Event T-Shirt included
  • Sprint Triathlon described as 'first lake swim'
  • Bike course has 'steep hills'
  • Run course has 'trail portion' which is 'a challenge'
  • Olympic Distance has 'more challenging swim'
  • Millerton Lake as the backdrop
  • USAT membership required for Triathlon
  • Total participation capped at 200
  • Vehicle entrance fee mentioned
  • First occurrence year 2025

This section is produced with AI from the listing we have on file—think of it as a quick orientation, not a rulebook. Organizers can update start times, courses, policies, and perks at any time, so when something really matters, please lean on their official race page for the latest. We don’t independently verify every detail against live organizer updates; we’re here to help you get a feel for the event and decide if you want to dig deeper.

Original listingFull description from sourceExpand the official listing text (unchanged)

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.  

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