Free Half Marathon Training Plan Generator
Training for your first half or hunting a sub-2? Answer a few quick questions and get a personalized 13.1 plan that fits your life.
Preview Your First Week
See how we structure your training.
Sample Half Marathon training week (beginner)
Toggle between Beginner, Intermediate, Advanced above to compare week structures.
This is just a sample. Your actual plan will be customized to your exact pace and schedule.
Customize This PlanConquer the 13.1 Miles
Your half marathon plan is tuned to your current mileage, preferred schedule, and target finish strategy.
Two half marathon training tracks
First-Time Finisher
Build long-run durability with safe volume progression and confidence for race day.
Sub-2 Focus
Prioritize threshold work, sustained tempos, and race-specific paces for a faster half.
What a Half Marathon training plan usually includes
Use these ranges as a planning baseline. Your generated schedule adjusts them around your current fitness, available days, race date, and goal pace.
Typical length
8-16 weeks
Weekly volume
20-45 miles / 32-72 km
Long run peak
8-13 miles / 13-21 km
How to use this half marathon page
Protect the long run
The long run is the anchor. Build it steadily before asking it to include big blocks at goal pace.
Practice race effort
Half marathon pace should feel controlled for stretches in training, not like a weekly time trial.
Leave room for fuel practice
Use longer runs to test drinks, gels, and timing. Waiting until race day is a bad bargain.
Preview a half marathon training week
A useful half marathon week protects the long run and uses tempo work carefully. It should feel repeatable.
| Day | Focus | Purpose |
|---|---|---|
| Mon | Rest | Full rest after the long run. |
| Tue | Tempo blocks | 2 x 12 min at controlled tempo effort, not all-out. |
| Wed | Easy | 35-50 min comfortable running. |
| Thu | Medium long | 60-75 min easy, relaxed finish. |
| Fri | Rest | Recovery before the long run. |
| Sat | Long run | 9-11 miles / 14-18 km with fueling practice. |
| Sun | Recovery | Short easy jog or complete rest. |
Which level should you choose?
Beginner
Use this if the goal is to finish well and build the long run without rushing the jump in distance.
Intermediate
Use this if you already run 10K comfortably and want tempo work plus longer aerobic runs.
Advanced
Use this if you can handle longer midweek runs and race-pace work inside long runs.
How long should the plan be?
8 weeks
A short block for runners who already have a strong long-run base.
10-12 weeks
The safest fit for many runners moving from regular 10K training into half marathon work.
14-16 weeks
Better for first-time half marathoners or anyone building weekly volume carefully.
Common mistakes to avoid
- Making every long run a race simulation
- Undertraining fuel and pacing before race day
- Choosing aggressive mileage without an endurance base
Tools to use with this Half Marathon plan
Check your goal, paces, and training zones before turning the plan into a weekly schedule.
Predict your Half Marathon finish time
Use a recent race or time trial to choose a realistic goal before training starts.
Calculate training paces
Convert goal time, distance, and pace into numbers you can use on workout days.
Estimate VO2 max
Benchmark current fitness from race time or running pace before setting plan intensity.
Set training zones
Map easy, tempo, threshold, and interval efforts to the right intensity ranges.
What your half marathon plan includes
Half Marathon Training FAQs
Next Steps
Compare related plans and tools before creating your custom schedule.
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