24-Week 70.3 Triathlon Plan (Half-Ironman)
24-Week 70.3 Triathlon Plan (Half-Ironman)
Length
24 Weeks
Plan Description
24-Week 70.3 Ironman Training Plan
Structured • Progressive • Real-World Tested
This 24-week program is designed for athletes targeting a 70.3 Ironman who want a clear, data-driven, and adaptable roadmap from baseline testing to race day.
The plan blends endurance, intensity, and recovery in a progressive structure that peaks at race-specific pace while minimizing injury risk.
Who It’s For
• Intermediate athletes with a consistent base (4–6 hr/week)
• Time-crunched age-groupers balancing work, family, and racing
• Triathletes seeking structure with flexibility — based on heart rate, pace, or power
What You Get
✅ Pre-Week 1 (Preparation Phase): Equipment setup, mobility, and baseline readiness
✅ Base Phase (Weeks 1–8): Aerobic foundation, testing, and endurance building
✅ Build 1 (Weeks 9–12): Threshold development and early race-pace work
✅ Build 2 (Weeks 13–20): Peak volume, long bricks, and nutrition practice
✅ Taper & Race Phase (Weeks 21–23): Freshness, sharpening, and execution
✅ Post-Race Recovery (Week 24): Structured recovery and reflection
Training Structure
• Swim: 2–3 sessions/week (2,000–4,000 yd avg)
• Bike: 3–4 sessions/week (4–7 hr avg)
• Run: 3–4 sessions/week (2–4 hr avg)
• Strength & Mobility: 1–2x weekly integrated sessions
Key Features
• Detailed warm-ups, main sets, cooldowns, and purpose for every workout
• Power, pace, and heart-rate zone guidance
• Progressive brick sessions to optimize race-day transitions
• Recovery-focused deload weeks every 4th week
• Six-dimension Focus Grid (FTP • Strength • Endurance • Sprints • Technique • Recovery)
Results
By the end of 24 weeks, you’ll be able to:
• Confidently execute a 70.3 race from start to finish
• Sustain your target race pace with proper fueling and pacing
• Arrive on the start line healthy, fresh, and mentally sharp
How it Works
Quickly view upcoming workouts in the TrainingPeaks app.
Upload completed workouts from your favorite tracking app or device.
Get feedback, stay on top of your training and perform at your best.
Training Plan Sample Week
Stats
Average Weekly Breakdown
| Workouts | Weekly Average | Longest Workout |
|---|---|---|
|
Run
x4
|
04:09:00 | 02:30:00 |
|
Swim
x4
|
02:47:00 | 01:00:00 |
|
Bike
x4
|
05:49:00 | 05:00:00 |
|
Custom
x1
|
00:35:00 | 00:30:00 |
|
X-Train
x1
|
00:22:00 | 00:30:00 |
|
strength
x1
|
—— | —— |
| Workouts Per Week | Weekly Average | Longest Workout | |
|---|---|---|---|
|
|
04:09:00 | 02:30:00 | |
|
|
02:47:00 | 01:00:00 | |
|
|
05:49:00 | 05:00:00 | |
|
|
00:35:00 | 00:30:00 | |
|
|
00:22:00 | 00:30:00 | |
|
|
—— | —— |
Training Load By Week
This plan works best with the following fitness devices:
- Power Meter
- Heart Rate Monitor
- GPS
- This plan includes a Free Basic TrainingPeaks Account.
- Access your training plan anywhere on the TrainingPeaks mobile and desktop apps.
- Track your performance with robust data tracking and detailed graphs.
- Plan for your event in the TrainingPeaks calendar.
- Track your weight, sleep, hours, fatigue and stress while you train.
- Completed workouts sync with popular apps like Garmin and Wahoo. Learn More
- If plan includes Structured Workouts, then planned workouts sync to compatible devices and guide you through workouts in real time. Learn More
Refund Policy
This plan is protected by our Refund Policy and may, with the author's approval, be exchanged for a plan of equal value from the same author.
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