Lauren HollandBy Lauren Holland

Updated November 2026

Half marathon tips for first timers come down to a few reliable habits: build your distance gradually, practice your fueling, pace conservatively and treat race day as a rehearsal of everything you have already done. Follow those steps and you should finish the 13.1 miles feeling strong, not wrecked. This guide covers what to do before, during and after your first half marathon.

Build a Base Before You Add Distance

Most first-timers fail not from lack of effort but from doing too much, too soon. Before you worry about race pace, make sure you can run comfortably three to four days a week and that your longest run is at least 6 miles. Increase your weekly mileage by no more than about 10 percent, and schedule a lighter week roughly every fourth week. If you want a structured schedule, First Half Marathon Training Plan: A 12-Week Guide for Beginners lays out how to sequence the work.

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Plan Your Long Runs and Recovery

Your long run is the backbone of half marathon training. Build it to 10 to 12 miles over the final few weeks, and run it at a conversational, easy effort. Keep at least one full rest day each week, and treat easy runs as easy. Recovery is when the fitness actually builds, so sleep and rest are part of the plan, not optional extras.

Practice Fueling and Hydration on Long Runs

Do not try anything on race day that you have not tested in training. Experiment on your long runs with gels, chews or sports drink, aiming for roughly 30 to 60 grams of carbohydrate per hour once you pass the 60-minute mark. Note what your stomach tolerates. Many runners also find that a few sips of water at each aid station is enough when the weather is mild.

Pace the Race and Manage Race Day

Start slower than you think you should. The excitement of a crowded start pulls many first-timers into a pace they cannot hold past mile 8. Use a run-walk strategy if it helps; short walk breaks at aid stations often leave you fresher for the final miles. Arrive early, pin your bib on the front, and avoid any new shoes or clothing.

Race-Day Checklist

  1. Bib, timing chip attachment and photo ID if required
  2. Race-tested running shoes and socks
  3. Breakfast eaten 2 to 3 hours before the start
  4. Gels or chews you have already used in training
  5. Layers for the start, with a plan to discard them
  6. Anti-chafe balm on areas that rub
  7. Your pace plan written on your wrist or in your head

A well-cushioned running shoe you have already logged miles in is the single most useful purchase for a first half marathon. A moisture-wicking running shirt and a pair of compression or anti-chafe shorts can prevent the blisters and rubbing that derail many new racers. View on Amazon

A small hydration belt or handheld bottle helps you stay on schedule with fluids during training runs, especially in warm weather. View on Amazon

Common Mistakes to Avoid

  • Going out too fast and fading badly after mile 9.
  • Trying new gels, drinks or shoes on race day.
  • Skipping rest days and building fatigue that shows up as injury.
  • Ignoring persistent pain instead of backing off.
  • Comparing your time to others rather than setting a personal goal.

FAQ

How long does it take to train for a first half marathon?

Most beginners need 10 to 12 weeks if they already run regularly. Those starting from little or no running may need 16 weeks or more to build a safe base.

Should I walk during a half marathon?

Yes, walking is a legitimate strategy. Short walk breaks at regular intervals can reduce fatigue and help you finish stronger, and many experienced runners use them too.

What should I do if I feel pain during training?

Sharp or worsening pain, especially in the knees, shins or feet, means you should reduce mileage and rest. If it persists, consult a doctor or a sports physical therapist before continuing.

Conclusion

A first half marathon rewards patience: build your base gradually, rehearse your fueling, and respect the start. Follow the steps above and you will arrive at the line prepared rather than hopeful. Finishing strong is about executing a plan you trust, not about speed.

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Lauren Holland

About Lauren Holland

Lauren Holland is part of our editorial team and reviews and edits our marathon & half-marathon guides, checking product details against manufacturer specifications and owner feedback.