Racing the Half Distance Triathlon in Boulder is no ordinary challenge. With its cool 62°F reservoir swim, fast rural bike course, and hard-packed dirt run with downhill rollers, this race demands smart, structured preparation. Our 44-week Half Distance Triathlon Boulder Training Plan is engineered to elevate Amateur Advanced Athletes and help you dominate the course with confidence and efficiency.
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✅ Why This Plan Works for Boulder:
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✅ Swim Ready at Altitude
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Build open-water strength to tackle Boulder Reservoir’s cool temps and long counterclockwise loop with drills that improve breathing and sighting—crucial for the east-to-west swim.
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✅ Conquer the 2-Loop Bike Course
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Master Boulder’s short rollers and rural descents with interval-based workouts and pacing strategies designed for speed and control on Diagonal Hwy and Hygiene Rd.
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✅ Run Boulder Strong
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Tackle hard-packed dirt and steady descents on Monarch Rd and 55th St. Our run training incorporates hill repeats, tempo sessions, and race-specific endurance work to help you stay fast and steady through both loops.
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💪 What You’ll Get:
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🔥 12-Week Base Phase
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Start strong—even with no prior base. Build aerobic capacity and movement patterns that lay a rock-solid foundation.
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📆 32-Week Race-Specific Plan
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Train smart with a progressive 3:1 cycle (3 weeks work, 1 week recovery) tailored to peak at week 39 with 14 hours of training, starting at just 9.5 hours per week.
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🏋️♂️ Strength Training Included
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Enhance functional movement, prevent injuries, and transition into powerful race-season strength—all customized for endurance athletes.
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🎯 Physiological Precision
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Our plan targets all energy systems:
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🫁 Aerobic Base & VO₂ Max
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🔥 Anaerobic Threshold & Power
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⚡ ATP-PC sprint capacity
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🏁 Ready to Race Boulder at Your Best?
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This is your moment to commit. Whether you're chasing a PR or your first Half Distance Triathlon finish, this plan delivers the structure, insight, and support you need. Train with purpose. Race with power.
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👉 Start your Boulder journey today – invest in your finish line success.
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WATCH ON YOUTUBE
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REGISTER HERE
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TO SET YOURSELF UP FOR SUCCESS – START HERE →
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SEARCH MORE BOULDER TRAINING PLAN OPTIONS
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CHOOSE YOUR NEXT HIGH PERFORMANCE CHALLENGE HERE →
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Have questions? Need help in selecting a plan? Let's Chat!
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Want To Get The Most Out Of This Training Plan? — Click Here To Learn More About Andiamo²® Self-Coached Options, and How To Receive Your FREE Run Gait Video Analysis!
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NAVIGATE OUR ENTIRE TRAINING PLAN CATALOG
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Every level. Every Training Plan. One simple price: just $6 a week—and the plan is yours to keep and reuse forever. Welcome to the Andiamo²™ family, where your goals, lifestyle, and personal best come first. Based in Austin, Texas, we offer in-person and remote triathlon coaching plus structured training plans that give every workout a clear purpose. Whether you’re preparing for your first race or your next breakthrough, you’ll have experienced guidance every step of the way.