Boulder Sunset Triathlon 2024: Race Against the Sunset!

I am thrilled to share the experience of the Boulder Sunset Triathlon, an event that encapsulates the essence of Colorado’s athletic spirit and scenic beauty. Held annually at the Boulder Reservoir, it’s a race that attracts athletes from across the nation with its promise of a flat and fast course. I’ve seen first-hand the excitement that radiates from the participants as they take on the sunrise swim, cycle past the panoramic views and run along paths that offer a stunning sight of the Flatirons in the distance.

The sun sets behind a massive boulder as athletes complete the triathlon course

The Boulder Sunset Triathlon marks a momentous occasion for both seasoned triathletes and newcomers to the sport, offering various distances to suit all levels of fitness and determination. It’s not just a race; it’s a celebration of endurance, personal achievement, and the joy of participating in a community that loves the outdoors as much as I do. Every year, as the event approaches, I can feel the anticipation building in the city often referred to as the triathlon capital of the country.

I get an adrenaline rush just thinking about the Boulder Sunset Triathlon. Whether it’s the breathtaking sunrise that greets you during the swim or the adrenaline-pumping bike course, there’s something incredibly invigorating about being part of this event. Plus, the feeling of crossing that finish line is nothing short of amazing; it’s the culmination of hard work, community spirit, and the vibrant energy that Boulder offers to everyone who comes here.

Event Overview of the Boulder Sunset Triathlon

I’m eager to guide you through the Boulder Sunset Triathlon, an exciting multi-sport event that takes place against the stunning backdrop of Boulder, CO. The triathlon offers a diverse range of races suitable for various skill levels, from beginners to elite athletes, all set in the scenic Boulder Reservoir.

Race Day Schedule

6:00 AM: The day kicks off early to make the most of the cool, serene morning at Boulder Reservoir—a perfect start for the athletes’ peak performance.

Categories and Events

  • Sprint Triathlon: A fast-paced challenge consisting of a 750m swim, 17.3-mile bike ride, and 3.1-mile run.
  • Olympic Triathlon: For a more intense test of endurance, there’s a 1500m swim, 26.4-mile bike ride, and a 6.2-mile run.
  • Aquabike: Focused on just swimming and cycling, with distances varying based on the specific category entered.
  • Duathlon: This category replaces swimming with an additional running segment, with a 3.1-mile run, a 17.3-mile bike ride, and another 3.1-mile run to finish off.
  • Multi-Sport Relays: Teams of 2-3 persons can partake in these events, combining their strengths to tackle either the Olympic Triathlon Relay, Sprint Triathlon Relay or Sprint Duathlon Relay.

Venue Highlights

The Boulder Reservoir shines as a highlight, offering a beautiful setting for each segment of the race. With clear waters for the swim, extensive roads encircling the water for the bike segment, and trails for the run, participants get to experience the best Boulder has to offer in terms of landscape and a well-organized race course.

The sun sets behind a boulder-strewn landscape as athletes swim, bike, and run in a triathlon

Participant Information

Boulder Sunset Triathlon: A vibrant sunset casts a warm glow over the calm waters of a boulder-lined lake, as the silhouette of a triathlon course stands against the colorful sky

I am thrilled to share with you everything you need to know about joining the Boulder Sunset Triathlon! Whether you’re a seasoned athlete or new to the triathlon scene, I’ve gathered the essentials on registration, preparation, and rules to make your experience unforgettable.

Registration Details

  • Photo ID Required: Make sure to bring a valid photo ID for packet pickup.
  • USAT Annual Members: If you’re a member, bring your USAT membership card to avoid purchasing a one-day membership.
  • Packet Pick Up: This is mandatory; collect your race packet, which includes race shirts and timing chips, the day before the event.
  • Age Group: I’ll compete in my assigned age group, ensuring a fair competition.
  • Race Shirts: All registered athletes receive a race shirt, which I’ll proudly wear to show my participation.
  • Finisher Medals: I can’t wait to cross the finish line and receive my finisher medal, a symbol of my hard work and dedication.

Athlete Preparation

I’m gearing up for an exciting challenge with distances varying based on the race I select. For the Olympic Triathlon, I’m preparing for a 1500m swim, 26.4-mile bike ride, and 6.2-mile run. As for the Sprint Triathlon, I’m readying myself for a 750m swim, a 17.3-mile bike ride, and a 3.1-mile run. I am mentally and physically conditioning myself to ensure I’m ready for race day!

Rules and Regulations

Staying informed about the rules and regulations is crucial to making sure my participation goes smoothly. Here’s what I’m keeping in mind:

  • Safety Gear: Helmet for the bike and proper swim attire are mandatory.
  • Course Cutoff Times: I need to complete each segment within the designated time.
  • No Drafting: Maintain the proper distance between myself and other cyclists to avoid penalties.
  • Obey Traffic Laws: When cycling, I’ll adhere to all traffic laws to ensure my safety and that of others.

Joining the Boulder Sunset Triathlon is not just about the race; it’s about personal achievement and the exhilarating feeling of being part of something extraordinary. Let’s do this!

Race Courses and Challenges

I’m thrilled to guide you through the Boulder Sunset Triathlon’s race courses, each offering its own unique set of challenges. Participants will tackle enriching paths that wind through the picturesque backdrop of the Boulder landscape, with courses designed to cater to different skill levels and preferences.

Swim Course

The Boulder Sunset Triathlon marks the beginning of the race with an invigorating swim in the Boulder Reservoir. The water, often calm and welcoming at sunrise, provides a serene yet challenging start to the triathlon. I’ll navigate through the Olympic or Sprint distances, depending on the relay I’ve chosen, and aim to meet the swim cut-off time to advance to the next stage.

Bike Course

The bike course is known for its flat terrain, allowing me to push my limits and achieve personal bests. The flat bike course stretches along Boulder’s scenic roads that are fully closed to traffic, ensuring a safe and uninterrupted experience. As I pedal, the iconic Flatirons serve as a stunning backdrop, motivating me forward with their majesty.

Run Course

Lastly, the smooth run course offers a comfortable, flat path, ideal for finding a strong rhythm and finishing strong. The terrain is forgiving, making it accessible for runners of all levels. Leading up to the finish line, I’ll savor the panoramic views of the Flatirons, a truly rewarding sight after the day’s exertions.

As I transition between each section, the transition area is meticulously organized, ensuring that I can smoothly switch from swim to bike to run. Offering both the Olympic and Sprint Duathlon formats, along with the option for relays, the Boulder Sunset Triathlon caters to a diverse field of athletes, each chasing their triathlon dreams amidst Boulder’s sunrise beauty.

Event Extras

I’m always looking out for those special touches that make a triathlon not just a race, but a memorable event. At the Boulder Sunset Triathlon, the extras make all the difference.

Accommodation and Amenities

Colorado Athletic Club Boulder – A gem for participants, offering top-tier facilities to get in that last-minute training or a soothing post-race recovery. Staying here means having quality amenities at your fingertips.

  • Road Runner Sports Westminster provides exclusive discounts for race participants, ensuring you’re equipped with the best gear.

Entertainment and Awards

  • The Race Crew works tirelessly to create a festive atmosphere, ensuring there’s never a dull moment.
  • Awards are not just medals; they’re a celebration of your hard work, with plenty of prizes up for grabs.

Race Director: “We’re proud to be part of the Summer Racing Schedule in the Triathlon Capital, bringing athletes together to enjoy both competition and camaraderie.”

This is the event where I mingle with fellow triathletes and revel in the excitement that only the Boulder Sunset Triathlon can offer.

Frequently Asked Questions about the Boulder Sunset Triathlon

I’m thrilled to share everything you need to know about the Boulder Sunset Triathlon! From distances and registration fees to training tips, I’ve got your questions covered right here.

What are the race distances for each leg of the Boulder Sunset Triathlon?

In the Boulder Sunset Triathlon, participants can expect to take on an Olympic distance, which typically includes a 1.5km swim, a 40km bike ride, and a 10km run. There’s also a Sprint version with a 750m swim, 20km bike, and 5km run. Duathlons and other race formats may have different distances.

How do you register for the Boulder Sunset Triathlon and what are the fees?

To join the race, I head to the official BBSC Endurance Sports website where registration can range from $0 to $155, depending on the event category and registration period.

Can I find a gallery of past event photos for the Boulder Sunset Triathlon?

Yes, typically, official event photos are available post-race. I find these either on the event’s website or through their social media channels where they often share a gallery of high-spirited race day images.

What are the award categories for the Boulder Sunset Triathlon?

The Boulder Sunset Triathlon celebrates a range of categories, including age groups, relay teams, and overall winners. I always check the athlete guide or event website to see the full list of categories.

Is there any course-specific training advice for athletes joining the Boulder Sunset Triathlon?

Absolutely! Given the unique terrain in Boulder, CO, I look at the course maps provided by the event organizers to plan my training accordingly, focusing on elevation and terrain that match the race conditions.

Where can I find the results of the previous Boulder Sunset Triathlon events?

Previous race results are often posted on the event’s official website. I check there soon after the event to see official times and placings.


Do you want to start at the Boulder Sunset Triathlon? Let me know in the comments. Make sure to also check out the Morro Bay Triathlon and the Boston Triathlon.

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