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VDOT Score
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Understanding Training Zones
🟢 Easy / Recovery (60-75% HR)
Most of your weekly mileage should be at easy pace. This builds aerobic base and promotes recovery. You should be able to hold a conversation.
🔵 Long Slow Distance (65-78% HR)
Weekend long runs build endurance. Run at easy pace or slightly faster. These prepare you for race-day distance.
🟡 Tempo / Threshold (82-88% HR)
Sustained effort at lactate threshold. Improves your ability to maintain faster paces. Typically 20-40 minute sessions.
🔴 Interval / VO2max (88-95% HR)
Hard repeats of 3-5 minutes with recovery. Develops maximum oxygen uptake. Key workout for 5K-10K improvement.