Couch to Half Marathon: A 16-Week Beginner Plan

A couch to half marathon plan needs about 16 weeks, three to four weekly sessions, and a long run that grows from 30 minutes to 10 or 11 miles. Use run-walk intervals early, keep intensity easy, and include cutback weeks every three to four weeks. The safest path to 13.1 miles is steady repetition, not dramatic weekly jumps.

Start with finish-line fitness in mind

The half marathon is long enough that durability matters more than speed for beginners. Your legs must tolerate time on feet, your stomach must tolerate fuel, and your mind must learn that easy effort can last a long time. If you can walk for 45 minutes now, you can start. If not, spend two to three weeks walking regularly first.

Weekly rhythm

• Two easy run-walk sessions of 25 to 45 minutes during the week.
• One long run or long run-walk on the weekend, built gradually.
• One optional short easy run, cross-training session, or strength session.
• At least two days without running to protect recovery.
• A cutback week every third or fourth week, dropping long-run distance by 20 to 30 percent.

16-week long-run build

1. Weeks 1-4: long session from 30 to 50 minutes, mostly run-walk.
2. Weeks 5-8: build from 4 to 7 miles, then cut back for recovery.
3. Weeks 9-12: progress from 7 to 9 miles and practice race fueling.
4. Weeks 13-14: peak at 10 to 11 miles, all at easy effort.
5. Weeks 15-16: taper, keep short runs relaxed, and race 13.1 miles fresh.

Fueling and pacing practice

Once your long run passes 75 minutes, take carbohydrates every 30 to 40 minutes. That might be a gel, chews, or sports drink with water. Practice in training so race day feels routine. Pace the half marathon by effort: the first 5K should feel almost too easy, the middle miles controlled, and the final 5K like a patient push rather than a panic.