Pre-built race input

1:25 half marathon NSA / NSM training paces

These NSA / NSM training paces are based on a 1:25 half marathon. Short reps (3 min) target 3:56/km, medium reps (6 min) 4:02/km, long reps (10 min) 4:10/km, and easy running stays around 5:18/km. Open the sample plan or use the calculator below to adjust to your actual time.

Open 6 h/week plan Calculate another race result

Training paces 1:25 Half Marathon

10-min reps 4:10/km 3 x 10 min

6-min reps 4:02/km 5 x 6 min

3-min reps 3:56/km 9 x 3 min

Easy pace 5:18/km Easy run

Sample week at 6 hours

Start with this 6-hour week. Keep the quality days controlled and use the easy days for recovery.

Mon Easy run

45 min

Tue 3 x 10 min

50 min total · 90-120s recovery

4:10/km

Wed Easy run

45 min

Thu 5 x 6 min

50 min total · 60-90s recovery

4:02/km

Fri Easy run

40 min

Sat 9 x 3 min

55 min total · 60s recovery

3:56/km

Sun Easy run

75 min

Equivalent race performances

Race equivalents from the same fitness estimate. Treat them as a range for planning.

5K 18:31

10K 38:23

Half marathon 1:24:58

Marathon 2:57:20

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Want your exact plan?

Start from this race input, change the weekly hours, add a marathon date if needed, or enter your exact recent result.