

20-Week Intermediate Half Distance Triathlon Training Plan
This plan is your gateway to smashing your personal best, pushing your limits, and unlocking your true potential.
Achieve Your Goals
- Crush Your PB: Swim more efficiently, ride stronger, and run faster with full confidence in your training.
- Increase Speed & Stamina: Boost your aerobic system and lactate threshold for sustained performance.
- Peak with Precision: Enter race day feeling sharp, fresh, and primed to perform.
Targets of the Plan
- Develop Endurance: Structured training ensures steady progress in swim, bike, and run performance.
- Enhance Speed & Power: Sessions designed to improve VO2 max, race pace, and efficiency.
- Optimize Race Execution: Improve transitions, pacing, and overall strategy.
- Increase Strength & Resilience: Strength sessions enhance durability and injury prevention.

Structured Progression
- Block 1: Build baseline fitness and endurance, with initial testing to set training zones.
- Block 2: Increase volume and intensity as your body adapts.
- Block 3: Maximise volume, boost VO2 max, and build aerobic capacity.
- Block 4: Hone race pace with race-pace efforts.
- Block 5: Taper, reduce volume, and sharpen fitness for race day.
Who Is This Plan For?
- Triathletes With Some Experience: Those ready to take their ability to the next level.
- PB Chasers: Athletes aiming to achieve their fastest Half Distance Triathlon .
- Dedicated Performers: Triathletes looking for structure, progression, and results.
- Front-Pack Swimmers: Those expecting to exit the swim towards the head of the pack. All swim sessions are written by a highly experienced, professional swim coach.
Before Starting You Should Be Able To:
- Swim consistently faster than 1:50 per 100 meters.
- Cycle for 1 hour.
- Run for 45 minutes.
What You Get
- 20 weeks of detailed training, designed for efficiency and impact.
- 6–9 sessions per week, including endurance, speed, and race-specific workouts.
- 2 Swim Sessions: Fine-tune technique and build speed endurance.
- 3 Bike Sessions: Target power and race-specific intensity.
- 3 Run Sessions: Build speed and stamina for a strong race finish.
- 1 Strength Session: Improve overall athleticism and injury resilience.
- 1 Rest Day: Crucial for recovery and peak performance.
Check out our other
Half Distance Training Plans Here
Start Your Journey
This plan isn’t just about completing the race; it’s about refining your skills, boosting your confidence, and unlocking your true potential.
Every session builds toward stronger performance, and every step takes you closer to achieving your goals.
With over a decade of professional swim coaching and an international triathlon background, I help beginners and developing athletes build sustainable habits for endurance sport. I coach athletes currently training under 12 hours a week who may not have grown up in sport. My approach prioritises clarity, patience, and purpose behind every session, ensuring training fits around your life without unnecessary pressure.