Half Marathon

RunEasy$1 daySpring, Autumn4 training

What it takes

How ready are you for this adventure?

Takes 2 minutes. No sign-in required.

The half marathon is the distance where joggers become runners. With 2.1 million finishers annually in the US, it's the preferred distance for 35% of runners — demanding enough to require a real training plan (12-16 weeks), short enough to be achievable within a single season. The 13.1-mile distance builds genuine aerobic endurance and teaches race-day pacing, nutrition, and mental toughness that carry into every longer challenge.

What Makes This Hard

The Real Challenge

13.1 miles takes most first-timers 2.5-3 hours on their feet — this is a duration challenge, not a speed challenge. By mile 10, your legs teach you something about glycogen depletion that no article can explain. The hardest part of training is weeks 10-14 when the long runs hit 10+ miles and the cumulative fatigue becomes real.

Where People Struggle

Skipping long runs and underestimating recovery time between them. Race-day adrenaline makes people start 30-45 seconds per mile too fast, which leads to hitting the wall at mile 9-10. Proper pacing in the first 4 miles is everything.

Key Numbers

Distance: 13.1 miles (21.1km)
Training: 12-16 weeks
Typical finish: 2:15-3:00 hr
Longest training run: 10-11 miles

Gear Essentials

Running shoes with at least 300 miles left on them (replace race-day shoes)
Race-day nutrition: gels or chews starting at mile 4, every 45 min — practice these in training
GPS watch with pace alerts to stop yourself going out too fast
Anti-chafe products on all contact points
Hat and sunscreen for morning races

Terrain & Conditions

Road races on paved courses, mostly flat with occasional rolling hills. Some trail half marathons add significant elevation. Weather is a major factor — check the forecast and dress in layers you can tie around your waist.

How Half Marathon Compares

Harder than: 10K Race
Comparable to: Metric Century (cycling equivalent in terms of duration and endurance)
Easier than: Marathon

Practical Logistics

Best time to go: Spring (April-May) or autumn (September-October)
Permit / registration: None — events are fully organized
Getting there: Major races in every large city; local options everywhere
Accommodation: Often a weekend trip for destination races like Brooklyn Half or Great North Run
Typical cost: $65-120 entry; destination races $100-200+
Guide: Self-guided; structured training plans are free online