Polarized Training Calculator
Plan your 80/20 polarized training approach - 80% easy, 20% hard intensity.
Weekly Training
Session Distribution
5
Easy sessions
1
Hard sessions
80/20 Distribution
Easy (80%)
48 km
6.4 hours
Hard (20%)
12 km
1.6 hours
Sample Week
Session 18 km
Easy: Aerobic/recovery run
Session 212 km
Hard: Intervals/VO2max
Session 38 km
Easy: Aerobic/recovery run
Session 48 km
Easy: Aerobic/recovery run
Session 512 km
Hard: Tempo/Threshold
Session 617 km
Long Easy: Long run at easy pace
Benefits of Polarized Training
Maximizes aerobic development
Allows proper recovery between hard sessions
Reduces injury risk from chronic moderate stress
Proven effective for elite endurance athletes
Research shows that elite endurance athletes typically train with a polarized distribution, avoiding the moderate intensity that many recreational runners gravitate toward. This 80/20 approach maximizes adaptation while minimizing fatigue accumulation.