Your first marathon
Long-term preparation, volume, nutrition and a strategy for 42.2 km.
Guides for smarter training
Practical advice to help you prepare for a goal without universal shortcuts or chasing unnecessary mileage.
Choose a goal or topic. Every guide explains not only what to do, but why it matters and how to adapt the advice to your own reality.
Never run before — or returning after a long break?Build a foundation with run/walk intervals and progress gradually from zero to 5K.
Already running 5K and ready for more?Choose the next goal that fits your current base.Your first 10KYour first half marathon
Want to train smarter with data?Start with heart rate zones, learn to read training load and leave room for recovery.Heart rate trainingTraining loadRecovery
Getting started
GUIDE
How to start running
Go from zero to 5K in about eight weeks with run/walk intervals, easy pacing and solutions to the mistakes that most often derail beginners.
~9 min readOpen guideGUIDEYour first 10K
Progress from 5K to 10K in 6–10 weeks: extend one run, keep the effort easy and build endurance without unnecessary jumps.
~8 min readOpen guideRace preparation
Train smarter
GUIDE
Heart rate training
Why pace can mislead, how heart rate zones work, what Z2 means and how to structure training so every run has a purpose.
~10 min readOpen guideGUIDETraining load
What fitness, fatigue and form mean, how to read training-load trends and when it may be better to add or ease back.
~9 min readOpen guideGUIDERecovery
How to arrange easy days, what sleep and resting heart rate may tell you, and why rest is a normal part of training.
~9 min readOpen guideGuides work better with calculators.
Turn a goal into a specific pace, training zones or an indicative finish-time estimate.
A guide shows the direction. Pacero adapts the route.
Try a plan free for 14 days that responds to your completed runs, load and recovery. No card required.
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