Sub-20 5k Pace Builder

Workout - Sub-20 5k Pace Builder

• 10min @ 5'52''/km
• 100m @ 0'50''/km
• 10 lots of:
  • 2min @ 4'00''/km
  • 1min rest
• 10min @ 5'52''/km

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Pull from The Running Channel’s Sub 20 Minute 5k Attempt Debrief — there’s a lot worth learning here. We’ve distilled the main takeaways so you can test this workout today. The full video fills in more detail and context.

Key Points

• Pacing matters: You need to know your target split (roughly 4:00 min/km for sub-20 5K) so you can tell if you’re hitting your pace during the run.
• Mental checkpoints: Break the race into 1 km chunks; if you drift a second or two off your split, make your adjustment in the next km.
• Interval training: 10 × 2-minute reps at roughly 10K pace (about 4:00 min/km) with 1-minute easy jogs in between build both your speed and ability to handle early-race intensity.
• Park‑run time trials: Using a flat, chip‑timed park run as a low‑stakes 5K trial helps you test your pacing strategy without full race stress.
• Recovery & consistency: Alternate between hard weeks and easy weeks; running consecutive hard 5K races can diminish your fitness.

Workout Example (drop this straight into the Pacing app):

1. Warm‑up – 10 min easy jog + 4 × 100 m strides.
2. Main set – 10 × 2 min at ~10 k pace (≈ 4:00 min/km) with 1 min easy jog recovery.
3. Cool‑down – 10 min easy jog. Goal: Complete the 2‑minute intervals feeling hard but controlled; nail down that 4:00 min/km split.

Closing Note: Run this one today. Tweak the paces in the Pacing app to match your current fitness level. The full video provides more insight into the strategy—give it a watch and work toward that sub-20 time.