Boulder Flatirons - Ironman 703 Boulder - Koru Performance

IRONMAN 70.3 Boulder: An Epic Challenge

2022 IRONMAN 70.3 Boulder: August 6, 2022

The health-conscious culture, near-perfect weather, and stunning natural environment make Boulder, Colorado a favorite of triathletes on the IRONMAN circuit. IRONMAN 70.3 Boulder has a well-earned reputation as one of the most scenic and challenging IRONMAN competitions in the country. The event attracts the best long-distance triathletes from across the country.

Each year, hundreds attend the event to cheer on the competitors and tour Boulder, passing through some classic sights. This triathlon is a great experience, not just for those who want to compete but also for those looking for a chance to win. Check out this essential guide to help you make the most of your experience.

Did You Know?? 

Boulder, Colorado Is Surrounded by 31,000 Acres of Recreational Open Space & Nature Preserves.



Course Overview

The journey starts outside the stunning scenery of Boulder’s foothills in the shadow of jagged peaks and epic cliffs. As the race passes through lush fields, lawns, and pine and oak forests, athletes can enjoy marathon-length views of the mountains and blue skies.

View all the maps on the official IRONMAN 70.3 Boulder Race Website.

The Swim

The swim at Boulder Reservoir is a single-loop. Summer temperatures at Boulder Reservoir typically range between 65 and 70 degrees Farenheit.

Note: "Wetsuits are permitted if the water temperature is up to (and including) 76.1 degrees Fahrenheit (24.5 degrees Celsius) or colder. Wetsuits cannot measure more than 5 mm thick."

Bike Route

The one-loop bike course traverses through the rural roads of the Boulder County and has roughly 2,000 feet of elevation gain. There are at least three aid / water stations visible on the map. The route contains rolling hills that can be ridden at a comfortable speed, but can be deceptively tough over the 56 miles.

Run Route

The 13.1-mile, double loop run, is a very fast route on dirt gravel roads. The dual loop format let your support crew see you twice. iPods, MP3 players, phones, video cameras aren't allowed. Aid stations will be around each mile of the run offering, water, Gatorade Endurance, Quantum Energy Squares, Maurten GEL 100, and more!


Workouts and Training

This IRONMAN checklist will give you tips, advice and information as you prepare to take on one of the best races in the world. Perfecting your training regimen will help build the confidence you need to tackle the tough swim and demanding bike course on August 6, 2022.

Not sure where to start?

Check out this Half IRONMAN Training Plan on Final Surge.


The Best Products for Your IRONMAN Performance

To help maximize your performance and to ensure your personal-best race day, it's important to have the right gear. Get the best-in-class products with our professional, knowledgeable athletes. We want to help keep you safe, moving toward your personal best time, and looking good in front of the cameras on race day. So get ready to go IRONMAN!

During competitions, be sure to wear sunscreen in order to protect skin while in altitude. Kōru Performance created the Mineral Sun Barrier Lotion and Mineral Sun Barrier Stick with triathletes in mind. The formula is water resistant for up to 80 minutes. It contains natural UV protectants as well as micronized zinc oxide that help prevent sun damage.

Did you know Kōru Endurance Lotion was designed specifically to buffer lactic acid?

Many triathletes load their carbs on long runs and fear that this could make them feel jittery during the race. Kōru Endurance Lotion is formulated with sodium bicarbonate, which buffers the excess lactate build-up from endurance sports.

Want the best way to recover from a race? Are you having muscle aches, leg cramps, or joint pain? Kōru Recovery Lotion contains natural anti-inflammatory ingredients that will help relieve these types of problems so that you can get back to training again. Apply the lotion generously for pain relief until completely absorbed. This pain relief balm can be used repeatedly as needed to relax sore muscles and joints.

If you have any questions regarding our products, please use the chat icon, and we will be happy to answer.


Race Day

Create an ultimate "race day" out of every step of your training. Make sure your plan includes plenty of rest days, hydration, nutrition, and a race day "preload" meal. Getting the right stuff before race day can help you get faster and more focused on your goal race.

Whether you're a seasoned triathlete, triathlete newbie or just a lover of a punishing race, the Boulder Ironman 70.3 is a challenging three-part event. It all happens this August, but it's not too late to join the party. Get your game on and prep your body for an amazing experience. Be ready to battle it out, but also be ready to feel amazing in the process!


2021 Recap