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runningintermediate
Half Marathon
Build to 13.1 miles with progressive long runs, Daniels threshold work for half-marathon pace, and a taper. Mostly easy running (≈80/20).
- Length
- 12 weeks
- Weekly load
- 4-6.5 h/wk (marathon to 8 h)
- Peak week
- 5.1 h
Who it's for
Running 3-4x/week for 6+ months; has finished the shorter distance.
Sample week 1
| Day | Session | Min | Intensity |
|---|---|---|---|
| Mon | Rest | — | rest |
| Tue | Time Trial: 20-30 min (set VDOT/LTHR) | 45 | hard |
| Wed | Easy Run | 40 | easy |
| Thu | Easy Run + Strides | 40 | easy |
| Fri | Rest | — | rest |
| Sat | Long Run | 65 | easy |
| Sun | Recovery Run | 35 | easy |