Target pace: 4:59/km. A mark that separates solid runners from the truly competitive.
Sub-50 in the 10km requires a Magic Index of 46 — the same as for sub-20 in 5km. These are equivalent and interchangeable goals: a sub-20 runner for 5km has the capacity for sub-50 in 10km.
The difference from 5km lies in specific endurance: you need to sustain 4:59/km pace for 10 more minutes. This requires greater total volume and longer long runs.
Find your current level
Enter a recent race time in the magic calculator to see where you stand and how far you are from your goal.
Aerobic base.
25-35 min at threshold.
800m-1000m repeated.
Target average pace.
Week 1 and the peak week of the top plan at each level, straight from the schedule. Volumes are the plan's prescription, in miles or minutes; your paces come in when you activate the plan with the magic calculator.
Intermediate · 12 weeks
| Day | Week 1 | Week 9 (peak) |
|---|---|---|
| Mon | Rest | Rest |
| Tue | Easy35 min | Easy45 min |
| Wed | Repetition30 min | Interval46 min |
| Thu | Rest | Rest |
| Fri | Threshold30 min | Threshold40 min |
| Sat | Rest | Rest |
| Sun | Long50 min | Long1h20 |
| Total | 2h25 · 4 workouts | 3h31 · 4 workouts |
Advanced · 12 weeks
| Day | Week 1 | Week 8 (peak) |
|---|---|---|
| Mon | Rest | Rest |
| Tue | Easy40 min | Easy45 min |
| Wed | Repetition35 min | Interval50 min |
| Thu | Easy35 min | Easy40 min |
| Fri | Threshold35 min | Threshold50 min |
| Sat | Rest | Rest |
| Sun | Long55 min | Long1h20 |
| Total | 3h20 · 5 workouts | 4h25 · 5 workouts |
Beginner · 18 weeks
| Day | Week 1 | Week 17 (peak) |
|---|---|---|
| Mon | Rest | Rest |
| Tue | Walk30 min | Interval35 min |
| Wed | Rest | Interval35 min |
| Thu | Rest | Interval35 min |
| Fri | Walk30 min | Rest |
| Sat | Rest | Interval35 min |
| Sun | Walk30 min | Interval45 min |
| Total | 1h30 · 3 workouts | 3h05 · 5 workouts |
Under 50 minutes in the 10km is a mark that puts you in the front pack at big popular Brazilian races. It's the threshold between 'solid runner' and 'competitive runner'. It requires a Magic Index of 46+ — the same needed for sub-20 in the 5km.
The difference between sub-20 in the 5km and sub-50 in the 10km is specific endurance: you need to hold 4:59/km pace for 5km more. That demands greater total training volume, longer long runs and race-pace specificity.
Km 1: 5:02-5:05. Km 2-5: 4:58-5:02. Km 6-8: 4:55-4:58. Km 9-10: everything you've got. The temptation to open at 4:50 in km 1 is lethal — the pace fade over the final 3km can cost you 2-3 minutes overall.
Train your race pace. In the final 4 weeks of preparation, include at least 2 workouts with 3-4km continuous at 4:58-5:02/km. Your body needs to memorize that effort before race day.
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