Category: Performance

Training for Your First Marathon: A Complete Guide

By FitMetricsHub Editorial Team
2026-06-25
6 min read

1. Structuring Your Mileage

Prepare for your first marathon with a structured 16-to-20 week program: Gradually increase your total weekly mileage by no more than 10% each week. Include one long-distance run per week to build muscular endurance.
  • Incorporate rest days and active recovery to support muscle repair.

2. Fueling and Hydration Science

During long training runs, practice your fueling strategy: consume 30 to 60 grams of fast-digesting carbohydrates per hour of exercise, and sip fluids regularly to maintain hydration.

Article FAQ Schema

Review additional questions and references discussed in this health literature.

For your first marathon, your longest training run should generally be around 32 kilometers (20 miles) to build physical and mental stamina.

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