
Triathlon
70.3 Triathlon
Build the endurance and discipline balance a 70.3 demands
Plan details
- Starting point
- Prior triathlon experience and a durable aerobic base
- Duration
- 18 weeks
- Weekly time
- About 9-13 hours
- Weekly rhythm
- 8-10 sessions
The progression
Four phases. One steady build.
- 01
Weeks 1-6
Foundation
Base Endurance
- 02
Weeks 7-11
Build One
Volume Loading
- 03
Weeks 12-15
Build Two
Race Intensity
- 04
Weeks 16-18
Peak & Race
Taper & Execute
Sample sessions
Inside a training week.
A representative week of training, recovery, and rhythm.
Build One
A long-course rhythm
Rest day
Recover and make room for the next session
Endurance swim
Hold form as the distance grows
Easy aerobic run
Build run durability without chasing pace
Aerobic endurance ride
Add steady volume between quality sessions
Steady power ride
Build strength without chasing spikes
Endurance swim
Hold form as the distance grows
Technique and recovery swim
Keep the water feel while absorbing the week
Easy aerobic run
Build durability before the weekend brick
Long bike into run
Practice patient race-day effort

Your 70.3 Triathlon plan starts here.
Train with a clear path from your first session to race day.
